57 Clever 4th Grade Science Projects That Will Blow Your Mind

September 14, 2023 //  by  Lauren Du Plessis

Our list of unique science projects is a sure winner when sourcing ideas that are appropriate to the 4th grade learner. Science is a vital component of STEM-based activities and our top 57 project ideas are sure to increase creativity, develop critical thinking abilities as well as effective communication and collaboration skills.

1. Flashlight Creation

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Discover simple electric circuit rules when creating this nifty paper flashlight! This project is the perfect experiment for kids as it’s sure to highlight the science behind batteries.

Learn More: Flashlight Creation

2. Lemon Volcano

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Have a blast creating this erupting lemon volcano! By using average household supplies, 4th graders discover the properties of both acids and bases and learn how the interaction between them causes a chemical reaction.

Learn More: Lemon Volcano

3. Earthquake Simulation

Set a dish of jelly and then go about building a structure on it. Upon completion of the structure, wobble the dish so that the jelly shakes and disrupts the structure- in turn demonstrating the science of seismology.

Learn More: Earthquake Simulation

4. Design a Hovercraft

Time after time, this proves to be one of the best experiments for demonstrating the power of the air. Unveil properties of friction and air pressure as you design a floating hovercraft!

Learn More: Design a Hovercraft

5. Make a Microscope 

A cause for STEM excitement! This wonderful project demonstrates how water droplets curve to create a convex lens and in turn, refract light and magnify objects.

Learn More: Make a Microscope

6. How Chameleons Change Color

Create a mesmerizing color show as an interactive poster that demonstrates how chameleons change color ass the middle wheel spins.

Learn More: How Chameleons Change Color

7. How Your Body is Similar to a Car

Just as we source our energy from food, cars source theirs from gasoline. Further, demonstrate how energy is stored and released with the help of simple materials such as rubber bands.

Learn More: How Your Body is Similar to a Car

8. Discover Newton’s Law

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With the aid of a string of beads, highlight Newton’s Law of Gravity as the beads are tugged ever so slightly and then begin to fall from the cup.

Learn More: Discover Newton’s Law

9. Egg Drop

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Students are encouraged to source material from home that they will use to create a protective barrier for their egg before dropping it to measure the effectiveness of their contraption in preventing their egg from cracking.

Learn More: Egg Drop

10. Static Electricity Science

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Discover the science of static electricity in a fun way by building an electroscope to demonstrate the forces of attraction and repulsion!

Learn More: Static Electricity Science

11. Demonstrate Water Erosion

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This hands-on, ocean science project is perfect for teaching students about coastal erosion and requires the use of simple materials such as a dish, sand, plastic bottle, stones, and water.

Learn More: Demonstrate Water Erosion

12. Milk Plastic

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This unique experiment can lead to hours of crafting fun as 4th grade students learn how to create plastic from milk!

Learn More: Milk Plastic

13. Salt Water Density Experiment

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The properties of water and density are highlighted in this science project as children discover that saltwater is denser than normal water.

Learn More: Salt Water Density Experiment

14. Make Unstoppable Bubbles

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By combining the traditional soapy bubble mixture with glycerin, students learn about how the original mixture evaporates from stronger bubbles.

Learn More: Make Unpoppable Bubbles

15. Discover More about Blood Components

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Biology is an important component of life but should be approached in a fun and simplified manner when working with 4th graders. Discover more about blood components by crafting “blood” model jars!

Learn More: Discover More about Blood Components

16. Could Dominoes knock a Building Over

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Discover the effects of chain reactions with the help of this easy science fair project idea before posing the question of whether or not dominos could knock down a building!

Learn More: Could Dominos Knock a Building Over

17. How Neon Signs Work

By making use of a small gas tube in this cool experiment, 4th graders will be intrigued to learn about how neon signs work.

Learn More: How Neon Signs Work

18. Anemometer

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Discover wind speed with the help of your very own anemometer! Simple earth science is unveiled with the help of a simple garden contraption made from paper cups, straws, tape, a pencil, and a thumbtack.

Learn More: Anemometer

19. Make Recycled Paper

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Although making recycled paper can at times be a process, it is extremely satisfying! Students watch how water is first absorbed by their shredded paper and then, towards the end of the process, how it is drained away- leaving a recycled piece of paper in its place.

Learn More: Make Recycled Paper

20. Nonrenewable Resources

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What better way to highlight the depletion of non-renewable resources, than by making use of noodle- mining in a competitive game or project! This hands-on activity is perfect for elementary-age students to use as an earth science project.

Learn More: Nonrenewable Resources

21. Balloon Rocket

This simple, yet fun, activity depicts Newton’s law of motion perfectly. By using household materials such as a balloon, straw, clothespin, and line, your students will discover that for every action, there is an equal or opposite reaction. Ready for blast off!

Learn More: Design Dazzle

22. Cloud Science

With the help of this exciting cloud science project, your 4th grad students will grasp the concept of the water cycle in no time! With the help of a paper cup, plastic zip-top bag, tape, and water students discover how water moves from the ground into the air, then forming clouds before falling back to earth as rain.

Learn More: Cloud Science

23. Blow up a Balloon with Vinegar and Baking Soda

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Intrigue 4th grade science students with this experiment that sees balloons magically inflate when baking soda and vinegar combine and generate carbon dioxide.

Learn More: Blow up a Balloon with Vinegar and Baking Soda

24. Cellphone Projector

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Not only is this a great science project, but most of the materials used are recycled materials. This simple project is perfect for teaching complex rules such as the refraction of light.

Learn More: Cellphone Projector

25. Create a working elevator 

Students are encouraged to make use of various materials in order to create a working elevator that has a crank and is able to bear a load.

Learn More: Create a Working Elevator

26. Ocean current simulator 

By making use of water, food coloring, an empty dish, and plastic sea creatures, students learn how ocean currents are formed in this simple science project.

Learn More: Ocean Current Simulator

27. Bacteria grower

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A simple Agar solution, that has been set in various Petri dishes, is the perfect breeding ground for bacteria. Swab items that the students use on a daily basis and wipe the swab’s on the dishes, then leaving them covered in order to grow and visually depict that bacteria are hiding all around us.

Learn More: Bacteria Grower

28. Wiggle Bot

Craft your very own Wigglebot! Using simple tools and supplies, 4th graders have the opportunity to work with potential energy in a fun manner!

Learn More: Wiggle Bot

29. Crystal names

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Make science fun as students grow an edible, crystalized version of their names on pipe cleaners ! This is just one of the many edible science projects out there for kids so be sure to get creative and see what you can make!

Learn More: Crystal Names

30. Capillary Action

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Teach the concept of capillary action with this spectacular rainbow glass display! This is a fantastic opportunity for students to learn about color mixing and how water travels.

Learn More: Capillary Action

31. Design a Working Lung Model

Explore more about the natural phenomenon of breath with this cool project. Design a working lung model using a plastic bottle, straws, balloons, sticky tape, and scissors.

Learn More: Kiwi Co

32. Make It Glow

Discover which water mixture will glow using black light to test regular water with highlighter dye, tonic water, and tap water.

Learn More: Cool Science Experiments HQ

33. Explore Tooth Decay

Learn about tooth decay using eggs and an assortment of drinks such as sugar water, soda, and milk. This project is wonderful for visually illustrating the effects of sugar products on teeth.

Learn More: Sciencing

34. Build a Hygrometer

Measure humidity with the help of your very own hygrometer made from a piece of wood and plastic, nails, a dime, glue, tape, a hammer, and a pair of scissors.

Learn More: We Have Kids

35. Discover Osmosis

Learn about osmosis with the help of this fun and colorful gummy bear science project!

Learn More: Homeschool

36. Rotting foods 

This experiment helps to develop thorough observation skills. Reveal which, out of an assortment of foods, will be the first to rot and discover what accelerates the process.

Learn More: No Time for Flash Cards

37. Create a Sundial

Turn back time as you craft an old-fashioned mechanism that helped ancient civilizations such as the Egyptians, Mayans, and Babylonians tell the time.

Learn More: Explorable

38. Make a fossil

Learn how fossils are formed as you leave your mark in a plaster of Paris cast. Consider casting an imprint using a toy to make this activity even more fun!

Learn More: YouTube

39. Build a Rubber Band Guitar

Explore the science of sound as you build a rubber band guitar using a heap of rubber bands and other simple materials.

Learn More: BBC Good Food

40. Make a Water Microscope

Make a microscope to allow you to examine certain objects in greater detail. You’ll need a piece of fuse wire, water and an assortment of objects to look analyze.

Learn More: Science Kids

41. Skittles Spectacular

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Roll out the rainbow with this fun project!  Demonstrate the diffusion process to your class using Skittles. This colorful experiment will certainly intrigue your pupils and make them eager to learn more. To carry it out, simply have your kiddies place a few Skittles on a plate and cover them with water before stepping back to watch the reaction that takes place.

Learn More: Rookie Parenting Science

42. Water Wonders: Sink or Float

This idea provides an excellent way to foster a healthy curiosity and understanding of fundamental physics principles. Encourage your students to hypothesize which household items will sink or float, before putting their theories to the test by placing selected items into a basin of water.

43. The Sun-Powered Oven Project

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Let your students harness the power of the sun by using a pizza box and transforming it into a solar oven. They can easily harness the sun’s rays by wrapping the box in aluminum foil and other materials to figure out the best way to capture the heat and then get baking. This is an engaging and memorable way to introduce solar energy that’s sweetened by the chance to make and enjoy s’mores!

Learn More: Science Buddies

44. The Journey of a Light-Chasing Plant

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Start your lesson with a question: Can plants solve mazes? The concept of phototropism will come alive as your students try to solve this problem by guiding a small plant through a simple cardboard maze toward the light. The result? A thrilling, real-time adventure demonstrating a plant’s instinctual growth response to sunlight that your class will love.

Learn More: Mama Smiles

45. Pinecone Predictions

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Challenge your class to be better than the weatherman! Teach your youngsters about humidity and weather changes using a humble pinecone. Simply hang a few cones around the school and prompt your children to observe them; open or closed tells a story about the humidity. They’ll be fascinated to discover how the pinecone’s responses can predict weather conditions.

Learn More: Play to Learn Preschool  

46. Fruit-Powered Fun

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You can turn everyday fruits into a source of electricity and marvel with your students as lemons, oranges, or apples light up a bulb or power a digital clock. All you need is a piece of fruit, some wire, and a few nails to engage your learners in a  hands-on project that illustrates the concept of electrical circuits.

Learn More: Kids Activities Blog

47. Shadow Dance

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Embark on a day-long shadow-tracking exercise with your students to understand more about the Earth’s rotation. To do so, have them record the changing shadow of a stick at different times throughout the day to visually depict the Earth spinning on its axis. 

Learn More: Inventors of Tomorrow

48. Popsicle Power Play

Allow physics to meet creativity when you encourage your students to construct a catapult out of popsicle sticks and elastic bands. To begin, have them research the best methods for creating the most force. As your kiddos thrill in testing which items the catapult can launch and whose items travel the furthest, they’ll be learning about the concept of potential and kinetic energy transformation.

49. Greenhouse Effect Model

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Using jars, thermometers, and plastic wrap, you can simulate the greenhouse effect right in your very own classroom. Provide your students with the necessary materials and instruct them to add the same amount of ice to each jar. Then, have them wrap one jar in plastic and leave the other open before placing them in the sun for a few hours. Lastly, prompt your young scientists to formulate their conclusions after measuring the temperature in each jar. 

Learn More: STEAM Powered Family

50. Pulling with Pulleys

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Mechanical advantage and work take center stage in this hands-on activity. By encouraging your young scientists to create a simple pulley system with a spool and string, they can explore mechanical advantage and the concept of work. This hands-on project will help you make complex physics principles that much more observable and fun.

51. Determining Densities

Allow your learners to explore density in a hands-on activity of the senses. As they pour honey, dish soap, water, and oil into a clear container, the differing densities will reveal themselves in a striking visual display.

52. Edible Genetics

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Sweets in a classroom seem to have a magical attention-grabbing power. Use this to your advantage when teaching genetics by having your students create an edible DNA model. With colored marshmallows or jelly sweets and toothpicks, they’ll come to understand the double helix structure in a fun, tasty way.

Learn More: Hess UnAcademy

53. The Rainfall Recorder

This is an easy project that introduces practical meteorological skills and fosters scientific curiosity. Empower your students to measure rainfall and track this over time with a homemade rain gauge. Use an empty bottle with the top cut off and then instruct your class to carefully fill the bottle in 20 ml increments; carefully marking the lines to ensure accuracy. 

54. Magnetism Unveiled

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Reveal the hidden world of magnetic fields to your students by engaging them in a project that uses a bar magnet and iron filings. They can simply lay the magnet under a piece of thin card stock and sprinkle the filings over the card. The result is a practical way for your budding scientists to visualize the unseen forces of magnetism; fostering a deeper understanding of this fundamental physical phenomenon.

55. Miniature Volcanic Eruption

Unleash the dramatic spectacle of a volcanic eruption in your classroom. Have your kiddos create a volcanic mountain with a cup in the center. Add baking soda to the cup and then slowly pour in the vinegar; resulting in a chemical reaction that will blow your young scientists’ minds. 

56. Invisible Ink Adventures

Introduce your students to the secret world of invisible ink with lemon juice. Get ready by preparing lemon juice, a brush or cotton swab, white paper, and a heat source. Ask your students to dip their brushes in lemon juice and use them to write or draw on the piece of paper. Then, help them carefully heat the piece of paper with a light bulb or iron to the secret message. It’s a playful way to learn about acidic and basic properties and will allow your young investigators to reveal hidden messages just like detectives.

57. Oil Spill Cleanup Challenge

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Conduct an environmental experiment with your class by simulating an oil spill using feathers, oil, and various cleaning materials. To a shallow tray, add water before scattering a few small feathers and then slowly spilling the oil into it. Once they’ve had the chance to marvel at the unique patterns that the different liquid densities create,  challenge them to solve the problem of removing the oil. This hands-on activity will emphasize the impact of pollution on the environment; helping you spark thought-provoking discussions about conservation and responsibility.

Learn More: Super Teacher Worksheets

The activities we’ve provided are perfectly adaptable and may be employed in individual, pair, or group settings. Be inspired to design creative classes with the help of our comprehensive list of science projects above. We strive to make learning fun whilst still highlighting the key concepts of science in a simplified manner.

Frequently Asked Questions

Why is science important for 4th graders.

Science-based learning at an elementary level introduces students to a STEM-based classroom focus and opens them up to STEM-related careers at a young age. Students discover key concepts about the world around them- unveiling properties of water, electrical currents, animals, ocean currents and so much more along the way!

4th Grade Science Fair Projects

  • Ph.D., Biomedical Sciences, University of Tennessee at Knoxville
  • B.A., Physics and Mathematics, Hastings College

Great 4th-grade science fair projects involve answering a question, solving a problem, or testing a hypothesis. Usually, a teacher or parent helps work out the hypothesis and design the project. Fourth graders have a good understanding of scientific concepts, but they may need help with the scientific method and organizing a poster or presentation. The key to developing a successful project is finding an idea that is interesting to a 4th grader.

Experiment Ideas

The best experiments usually begin with a question to which you don't know the answer. Once you've formulated a question, you can design a simple experiment to help figure out the answer:

  • Do cockroaches have a preference for direction? Catch and release cockroaches. Which way do they go? Is there a common trend or not? You can try this project with ants or other crawling insects as well.
  • Do colored ice cubes melt at the same rate as clear ice cubes? Add food coloring to an ice cube tray and compare how long the colored cubes take to melt compared to the regular ones.
  • Does magnetism travel through all materials? Put different materials between a magnet and metal. Do they affect how strongly the magnet is attracted to the metal? If so, do they all affect the magnetic field to the same degree?
  • Do all crayon colors last the same? Draw a really long line with one color, then draw the same length of line with another color. Are both crayons the same length?
  • What is the effect of microwaving seeds on their germination rate? Test seeds that sprout quickly, like radish seeds, and different microwave times, such as 5 seconds, 10 seconds, 30 seconds, one minute. Use a control (no microwave) treatment for comparison.
  • Will seeds germinate if you soak them in a liquid other than water? You can try milk, juice, vinegar, and other common household liquids. Alternatively, you could see if plants will grow if they are "watered" with liquids other than water.
  • Make a simple homemade windmill. What is the best number of blades for the windmill?
  • How much salt (or sugar) can a plant tolerate? Water plants with a different solution of salt or sugar. How high of a concentration can the plant tolerate? A related question would be to see if plants can survive if they are watered with soapy water such as leftover dishwater.
  • Do birds have a preference for birdhouse material? In other words, do they seem to care if the birdhouse is made of wood or plastic or metal?
  • Do worms react when they are exposed to light? Do they react differently when they are exposed to different colors of light?
  • Do ants prefer different types of sugar? Test using table sugar, honey, maple syrup , and molasses.
  • Can you taste the difference between foods that contain fat and fat-free versions of the same product?
  • Compare the water filtration rate of different brands of coffee filters. Take one cup of liquid and time how long it takes to pass through the filter. Do the different filters affect the flavor of the coffee?
  • Do white candles and colored candles burn at the same rate?
  • Write messages using different types of invisible ink . Which was the most invisible? Which method produced a message that was easy to read after it was revealed?
  • 5th Grade Science Fair Projects
  • Chemistry Science Fair Project Ideas
  • 8th Grade Science Fair Project Ideas
  • 3rd Grade Science Fair Projects
  • Middle School Science Fair Project Ideas
  • 6th Grade Science Fair Projects
  • Second Grade Science Fair Projects
  • First-Grade Science Projects
  • Grade School Science Fair Project Ideas
  • Elementary School Science Fair Projects
  • Science Fair Project Ideas
  • High School Science Fair Projects
  • Science Fair Project Ideas for 12th Graders
  • Kindergarten Science Projects
  • How to Do a Science Fair Project
  • Grades 6-12
  • School Leaders

Black History Month for Kids: Google Slides, Resources, and More!

70 Easy Science Experiments Using Materials You Already Have On Hand

Because science doesn’t have to be complicated.

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If there is one thing that is guaranteed to get your students excited, it’s a good science experiment! While some experiments require expensive lab equipment or dangerous chemicals, there are plenty of cool projects you can do with regular household items. Regardless of how empty your cabinets may be, we think you are likely to have at least some of these things lying around at home. Watch as your students engineer a bridge, solve environmental issues, explore polymers, or work with static electricity. We’ve rounded up a big collection of easy science experiments that anybody can try, and kids are going to love them!

1. Amplify a smartphone

DIY smartphone amplifier made from paper cups

No Bluetooth speaker? No problem! Put together your own from paper cups and toilet paper tubes.

Learn more: Mum in the Madhouse

2. Send a teabag flying

Empty tea bags burning into ashes

Hot air rises, and this experiment can prove it! You’ll want to supervise kids with fire, of course. For more safety, try this one outside!

Learn more: Coffee Cups and Crayons

3. Taste the rainbow

Skittles form a circle around a plate. The colors are bleeding toward the center of the plate. (easy science experiments)

Teach your students about diffusion while creating a beautiful and tasty rainbow! You’ll definitely want to have extra Skittles on hand so your class can enjoy a few as well!

Learn more: ToucanBox

4. Watch the water rise

Two side-by-side shots of an upside-down glass over a candle in a bowl of water, with water pulled up into the glass in the second picture

Learn about Charles’s Law with this simple experiment. As the candle burns, using up oxygen and heating the air in the glass, the water rises as if by magic.

Learn more: Team Cartwright

5. Set raisins dancing

Raisins floating in a glass of fizzy water

This is a fun version of the classic baking soda and vinegar experiment, perfect for the younger crowd. The bubbly mixture causes raisins to dance around in the water.

Learn more: 123 Homeschool 4 Me/Dancing Raisins

6. Race a balloon-powered car

Car made from cardboard with bottlecap wheels and powered by a blue balloon

Kids will be amazed when they learn they can put together this awesome racer using cardboard and bottle-cap wheels. The balloon-powered “engine” is so much fun too.

Learn more: ProLab

7. Crystallize your own rock candy

Colorful rock candy on wood sticks

Crystal science experiments teach kids about supersaturated solutions. This one is easy to do at home, and the results are absolutely delicious!

Learn more: Growing a Jeweled Rose

8. Make elephant-sized toothpaste

children are seen from the shoulders down standing behind three bottles that are overflowing with red, yellow, and green fluid. (easy science experiments)

This fun project uses yeast and a hydrogen peroxide solution to create overflowing “elephant toothpaste.” You can also add an extra fun layer by having the kids create toothpaste wrappers for their plastic bottles.

Learn more: Steve Spangler Science

9. Repel glitter with dish soap

Square dish filled with water and glitter, showing how a drop of dish soap repels the glitter

Everyone knows that glitter is just like germs—it gets everywhere and is so hard to get rid of! Use that to your advantage and show kids how soap fights glitter and germs.

Learn more: Living Life & Learning

10. Blow the biggest bubbles you can

Girl making an enormous bubble with string and wire (Easy Science Experiments)

Add a few simple ingredients to dish soap solution to create the largest bubbles you’ve ever seen! Kids learn about surface tension as they engineer these bubble-blowing wands.

Learn more: Scholastic/Dish Soap Bubbles

11. Make neon flowers

Eight daisies are shown in different neon colors. The water in the vases they are in are the same color as the daisies. (easy science experiments)

We love how simple this project is to re-create since all you’ll need are some gerbera daisies, food coloring, glasses, and water. The end result is just so beautiful!

Learn more: My Child Care Academy/Neon Flower

12. Build a Ferris wheel

Miniature Ferris Wheel built out of colorful wood craft sticks

You’ve probably ridden on a Ferris wheel, but can you build one? Stock up on wood craft sticks and find out! Play around with different designs to see which one works best.

Learn more: Teachers Are Terrific and eHow

13. Learn about capillary action

Glasses of colored water with paper towel strips leading from one to the next

Kids will be amazed as they watch the colored water move from glass to glass, and you’ll love the easy and inexpensive setup. Gather some water, paper towels, and food coloring to teach the scientific magic of capillary action.

Learn More: 123 Homeschool 4 Me/Capillary Action

14. Demonstrate the “magic” leakproof bag

Plastic bag full of water with pencils stuck through it (Easy Science Experiments)

So simple and so amazing! All you need is a zip-top plastic bag, sharp pencils, and some water to blow your kids’ minds. Once they’re suitably impressed, teach them how the “trick” works by explaining the chemistry of polymers.

Learn more: Paging Fun Mums

15. Design a cell phone stand

Basic cell phone stand made from wood craft sticks, paper clips, and rubber bands (Sixth Grade Science)

Use your engineering skills and items from around the house to design and build a cell phone stand.

Learn more: Science Buddies/Cell Phone Stand

16. Give a balloon face a beard

A pink balloon has a face drawn on it. It is hovering over a plate with salt and pepper on it (easy science experiments)

Equally educational and fun, this experiment will teach kids about static electricity using everyday materials. Kids will undoubtedly get a kick out of creating beards on their balloon person!

Learn more: Go Science Girls/Static Electricity

17. Re-create the water cycle in a bag

Plastic bag of blue water with a sun and clouds drawn on it (Easy Science Experiments)

You can do so many easy science experiments with a simple zip-top bag! Fill one partway with water and set it on a sunny windowsill to see how the water evaporates up and eventually “rains” down.

Learn more: Grade School Giggles

18. Conduct an egg drop

Egg surrounded by paper straws taped into place

Put all their engineering skills to the test with an egg drop! Challenge kids to build a container from stuff they find around the house that will protect an egg from a long fall (this is especially fun to do from upper-story windows).

Learn more: Buggy and Buddy/Egg Drop

19. Engineer a drinking straw roller coaster

Student building a roller coaster of drinking straws for a ping pong ball (Fourth Grade Science)

STEM challenges are always a hit with kids. We love this one, which only requires basic supplies like drinking straws.

Learn more: Frugal Fun for Boys and Girls/Straw Roller Coaster

20. Use apple slices to learn about oxidation

Several apple slices are shown on a clear plate. There are cards that label what they have been immersed in (including salt water, sugar water, etc.) (easy science experiments)

Have students make predictions about what will happen to apple slices when immersed in different liquids, then put those predictions to the test! Finally, have them record their observations.

Learn more: Jennifer Findley/Apple Oxidation

21. Build a solar oven

Solar oven built from a pizza box with s'mores inside

Explore the power of the sun when you build your own solar ovens and use them to cook some yummy treats. This experiment takes a little more time and effort, but the results are always impressive. The link below has complete instructions.

Learn more: Desert Chica

22. Float a marker man

Float a Marker Man on water with sharpie

Their eyes will pop out of their heads when you “levitate” a stick figure right off the table! This experiment works due to the insolubility of dry-erase marker ink in water, combined with the lighter density of the ink.

Learn more: Gizmodo

23. Discover density with hot and cold water

Mason jars connected at the mouths, with layers of colored water

There are a lot of easy science experiments you can do with density. This one is extremely simple, involving only hot and cold water and food coloring, but the visuals make it appealing and fun.

Learn more: STEAMsational

24. Find your way with a DIY compass

DIY compass made from a needle floating in water

Here’s an old classic that never fails to impress. Magnetize a needle, float it on the water’s surface, and it will always point north.

Learn more: STEAM Powered Family

25. Learn to layer liquids

Clear cylinder layered with various liquids in different colors

This density demo is a little more complicated, but the effects are spectacular. Slowly layer liquids like honey, dish soap, water, and rubbing alcohol in a glass. Kids will be amazed when the liquids float one on top of the other like magic (except it is really science).

Learn more: Wonder How To

26. Crush a can using air pressure

Student's gloved hand holding tongs over a crushed soda can sitting in a bowl of water (Seventh Grade Science)

Sure, it’s easy to crush a soda can with your bare hands, but what if you could do it without touching it at all? That’s the power of air pressure!

Learn more: Frugal Fun for Boys and Girls/Can Crush

27. Make homemade bouncy balls

Two children are shown (without faces) bouncing balls on a white table (easy science experiments)

These homemade bouncy balls are easy to make since all you will need is glue, food coloring, borax powder, cornstarch, and warm water. You will want to store them inside a container like a plastic egg because they will flatten out over time.

Learn more: Come Together Kids/Make Your Own Bouncy Balls

28. Build a Da Vinci bridge

Mini Da Vinci bridge made of pencils and rubber bands (Easy Science Experiments)

There are plenty of bridge-building experiments out there, but this one is unique. It’s inspired by Leonardo da Vinci’s 500-year-old self-supporting wooden bridge. Learn how to build it at the link, and expand your learning by exploring more about Da Vinci himself.

Learn more: iGame Mom

29. Grow a carbon sugar snake

Giant carbon snake growing out of a tin pan full of sand

Easy science experiments can still have impressive results! This eye-popping chemical reaction demonstration only requires simple supplies like sugar, baking soda, and sand.

Learn more: KiwiCo/Carbon Sugar Snake

30. Create eggshell chalk

Chunk of pink chalk lying on paper towels (Easy Science Experiments)

Eggshells contain calcium, the same material that makes chalk. Grind them up and mix them with flour, water, and food coloring to make your very own sidewalk chalk.

Learn more: Kidspot

31. Make a basic sundial

a large piece of cardboard has a white circle in the center with a pencil standing upright in the middle of the circle. Rocks are on all four corners holding it down.

While people use clocks or even phones to tell time today, there was a time when a sundial was the best means to do that. Kids will certainly get a kick out of creating their own sundials using everyday materials like cardboard and pencils.

Learn more: PBS Kids/Sundial

32. Learn about plant transpiration

Plastic zipper bag tied around leaves on a tree (Easy Science Experiments)

Your backyard is a terrific place for easy science experiments! Grab a plastic bag and rubber band to learn how plants get rid of excess water they don’t need, a process known as transpiration.

Learn more: Teach Beside Me

33. Make naked eggs

Child holding a raw egg without its shell

This is so cool! Use vinegar to dissolve the calcium carbonate in an eggshell to discover the membrane underneath that holds the egg together. Then, use the “naked” egg for another easy science experiment that demonstrates osmosis .

Learn more: Making Memories With Your Kids

34. Make sparks with steel wool

Steel wool on fire in a tin pan (Easy Science Experiments)

All you need is steel wool and a 9-volt battery to perform this science demo that’s bound to make their eyes light up! Kids learn about chain reactions, chemical changes, and more.

Learn more: The Homeschool Scientist

35. Practice stop-motion animation

An image is divided into four separate images. There are small action figures in front of a tablet.

This is the perfect experiment for the budding filmmaker since they can decide on a backdrop, characters (toys), and story. Use a good stop-motion animation app to bring the film to life!

Learn more: Tinker Lab/Stop-Motion Animation

36. Turn milk into plastic

Student scooping plastic fragments out of a mug next to bottle of vinegar and measuring glass of milk (Easy Science Experiments)

This sounds a lot more complicated than it is, but don’t be afraid to give it a try. Use simple kitchen supplies to create plastic polymers from plain old milk. Sculpt them into cool shapes when you’re done!

Learn more: Science Buddies/Milk Into Plastic

37. Levitate a Ping-Pong ball

Student holding the cut off top of a bottle with a straw attached through the lid, with a ping pong ball floating over top

Kids will get a kick out of this experiment, which is really all about Bernoulli’s principle. You only need plastic bottles, bendy straws, and Ping-Pong balls to make the science magic happen.

Learn more: Buggy and Buddy/Floating Ping-Pong Ball

38. Launch a two-stage rocket

Two long balloons turned into a rocket with straws, rubber bands, and binder clips (Easy Science Experiments)

The rockets used for space flight generally have more than one stage to give them the extra boost they need. This easy science experiment uses balloons to model a two-stage rocket launch, teaching kids about the laws of motion.

Learn more: Science Buddies/Two-Stage Rocket

39. Pull an egg into a bottle

Empty bottle next to a bowl of eggs and a cup of matches with a plastic straw (Easy Science Experiments)

This classic easy science experiment never fails to delight. Use the power of air pressure to suck a hard-boiled egg into a jar, no hands required.

Learn more: Left Brain Craft Brain

40. Test pH using cabbage

Test tubes filled with purple liquid (Easy Science Experiments)

Teach kids about acids and bases without needing pH test strips! Simply boil some red cabbage and use the resulting water to test various substances—acids turn red and bases turn green.

Learn more: Education Possible

41. Clean some old coins

Pennies in containers of cola, vinegar and salt, apple juice, water, catsup, and vinegar (Easy Science Experiments)

Use common household items to make old oxidized coins clean and shiny again in this simple chemistry experiment. Ask kids to predict (hypothesize) which will work best, then expand the learning by doing some research to explain the results.

Learn more: Gallykids

42. Clean up an oil spill

Students sit around a table that has a tin pan filled with blue liquid wiht a feather floating in it (easy science experiments)

Before conducting this experiment, teach your students about engineers who solve environmental problems like oil spills. Then, have your students use provided materials to clean the oil spill from their oceans.

Learn more: Science After School Blogspot/Oil Spill

43. Blow up a balloon—without blowing

Two plastic water bottles with inflated balloons attached to the tops (Easy Science Experiments)

Chances are good you probably did easy science experiments like this when you were in school yourself. This well-known activity demonstrates the reactions between acids and bases. Fill a bottle with vinegar and a balloon with baking soda. Fit the balloon over the top, shake the baking soda down into the vinegar, and watch the balloon inflate.

Learn more: All for the Boys

44. Construct a homemade lava lamp

Plastic bottle with blobs of blue oil floating in water

This 1970s trend is back—as an easy science experiment! This activity combines acid/base reactions with density for a totally groovy result.

Learn more: Education.com

45. Whip up a tornado in a bottle

Upside-down glass bottle with a water tornado inside (Easy Science Experiments)

There are plenty of versions of this classic experiment out there, but we love this one because it sparkles! Kids learn about a vortex and what it takes to create one.

Learn more: Cool Science Experiments HQ

46. Explore how sugary drinks affect teeth

Four cups of different liquids with eggs floating in them (Easy Science Experiments)

The calcium content of eggshells makes them a great stand-in for teeth. Use eggs to explore how soda and juice can stain teeth and wear down the enamel. Expand your learning by trying different toothpaste and toothbrush combinations to see how effective they are.

Learn more: Feels Like Home

47. Monitor air pressure with a DIY barometer

Homemade barometer using a tin can, rubber band, and ruler

This simple but effective DIY science project teaches kids about air pressure and meteorology. They’ll have fun tracking and predicting the weather with their very own barometer.

Learn more: Edventures With Kids

48. Mummify a hot dog

Two hotdogs, one smaller and darker than the other, on a paper towel (Easy Science Experiments)

If your kids are fascinated by the Egyptians, they’ll love learning to mummify a hot dog! No need for canopic jars ; just grab some baking soda and get started.

Learn more: Science Buddies/Science of Mummification

49. Extinguish flames with carbon dioxide

Series of lit tea lights with a glass pitcher

This is a fiery twist on acid-base experiments. Light a candle and talk about what fire needs in order to survive. Then, create an acid-base reaction and “pour” the carbon dioxide to extinguish the flame. The CO2 gas acts like a liquid, suffocating the fire.

Learn more: Sick Science!/YouTube

50. Make a magnifying glass from ice

A child holds up a pice of ice to their eye as if it is a magnifying glass. (easy science experiments)

Students will certainly get a thrill out of seeing how an everyday object like a piece of ice can be used as a magnifying glass. Be sure to use purified or distilled water since tap water will have impurities in it that will cause distortion.

Learn more: STEAMsational/Ice Magnifying Glass

51. Do the Archimedes squeeze

Child dropping a ball of aluminum foil into a container of water (Easy Science Experiments)

It sounds like a wild dance move, but this easy science experiment demonstrates Archimedes’ principle of buoyancy. All you need is aluminum foil and a container of water.

Learn more: Science Buddies/Archimedes Squeeze

52. Step through an index card

Student stretching out an index card cut into a large rectangle (Easy Science Experiments)

This is one easy science experiment that never fails to astonish. With carefully placed scissor cuts on an index card, you can make a loop large enough to fit a (small) human body through! Kids will be wowed as they learn about surface area.

Learn more: Mess for Less

53. Stand on a pile of paper cups

Child standing on a stack of paper cups and cardboard squares

Combine physics and engineering and challenge kids to create a paper cup structure that can support their weight. This is a cool project for aspiring architects.

Learn more: Science Sparks

54. Mix up saltwater solutions

Glasses of basking soda water, sugar water, plain water, and salt water with red stones in them (Easy Science Experiments)

This simple experiment covers a lot of concepts. Learn about solutions, density, and even ocean science as you compare and contrast how objects float in different water mixtures.

Learn more: Science Kiddo

55. Construct a pair of model lungs

Plastic bottle with pink and black balloons inside, with student pulling a red balloon diaphragm (Easy Science Experiments)

Kids get a better understanding of the respiratory system when they build model lungs using a plastic water bottle and some balloons. You can modify the experiment to demonstrate the effects of smoking too.

Learn more: Surviving a Teacher’s Salary

56. Test out parachutes

Child standing on a stepladder dropping a toy attached to a paper parachute

Gather a variety of materials (try tissues, handkerchiefs, plastic bags, etc.) and see which ones make the best parachutes. You can also find out how they’re affected by windy days or find out which ones work in the rain.

Learn more: Inspiration Laboratories

57. String up some sticky ice

Piece of twine stuck to an ice cube (Easy Science Experiments)

Can you lift an ice cube using just a piece of string? This quick experiment teaches you how. Use a little salt to melt the ice and then refreeze the ice with the string attached.

Learn more: Playdough to Plato

58. Experiment with limestone rocks

Child pouring vinegar over a rock in a bowl

Kids  love to collect rocks, and there are plenty of easy science experiments you can do with them. In this one, pour vinegar over a rock to see if it bubbles. If it does, you’ve found limestone!

59. Recycle newspaper into an engineering challenge

Kids stacking a textbook into a cone of newspaper tubes (Easy Science Experiments)

It’s amazing how a stack of newspapers can spark such creative engineering. Challenge kids to build a tower, support a book, or even build a chair using only newspaper and tape!

Learn more: STEM Activities for Kids

60. Turn a bottle into a rain gauge

Plastic bottle converted to a homemade rain gauge (Easy Science Experiments)

All you need is a plastic bottle, a ruler, and a permanent marker to make your own rain gauge. Monitor your measurements and see how they stack up against meteorology reports in your area.

Learn More: NurtureStore

61. Use rubber bands to sound out acoustics

White plastic cup with rubber bands stretched across the opening (Easy Science Experiments)

Explore the ways that sound waves are affected by what’s around them using a simple rubber band “guitar.” (Kids absolutely love playing with these!)

62. Send secret messages with invisible ink

I Love You written in lemon juice on a piece of white paper, with lemon half and cotton swabs

Turn your kids into secret agents! Write messages with a paintbrush dipped in lemon juice, then hold the paper over a heat source and watch the invisible become visible as oxidation goes to work.

Learn more: KiwiCo/Invisible Ink

63. Build a folded mountain

Pile of layered towels being pushed together between two plastic tubs

This clever demonstration helps kids understand how some landforms are created. Use layers of towels to represent rock layers and boxes for continents. Then pu-u-u-sh and see what happens!

Learn more: The Chaos and the Clutter

64. Play catch with a catapult

Catapult and catcher made from plastic cups, pencils, and wood craft sticks (Easy Science Experiments)

Catapults make fun and easy science experiments, but we like the twist on this one that challenges kids to create a “receiver” to catch the soaring object on the other end.

Learn more: Science Buddies/Ball Launcher Challenge

65. Take a Play-Doh core sample

Layers of Play Doh with holes poked into it

Learn about the layers of the Earth by building them out of Play-Doh, then take a core sample with a straw. ( Love Play-Doh? Get more learning ideas here. )

Learn more: Line Upon Line Learning

66. Project the stars on your ceiling

Student poking holes in the shape of a constellation on the bottom of a paper cup (Easy Science Experiments)

Use the video lesson in the link below to learn why stars are only visible at night. Then create a DIY star projector to explore the concept hands-on.

Learn more: Mystery Science

67. Build a better umbrella

Cupcake liner turned upside-down over wood craft sticks with water being poured over top

Challenge students to engineer the best possible umbrella from various household supplies. Encourage them to plan, draw blueprints, and test their creations using the scientific method.

Learn more: Raising Lifelong Learners

68. Make it rain

Glass jar of water with shaving cream floating on top, with blue food coloring dripping through, next to a can of shaving cream

Use shaving cream and food coloring to simulate clouds and rain. This is an easy science experiment little ones will beg to do over and over.

Learn more: Mrs. Jones’ Creation Station

69. Use water to “flip” a drawing

Drawing of a hand with the thumb up and a glass of water

Light refraction causes some really cool effects, and there are multiple easy science experiments you can do with it. This one uses refraction to “flip” a drawing; you can also try the famous “disappearing penny” trick .

Learn more: Go Science Kids

70. Send a soda geyser sky-high

Students looking surprised as foamy liquid shoots up out of diet soda bottles

You’ve always wondered if this really works, so it’s time to find out for yourself! Kids will marvel at the chemical reaction that sends diet soda shooting high in the air when Mentos are added.

Learn more: Scholastic/Soda Explosion

Looking for even more science fun? Get the best science experiments for grades K-8 here.

Plus, sign up for our newsletters to get all the latest learning ideas, straight to your inbox..

Science doesn't have to be complicated! Try these easy science experiments using items you already have around the house or classroom.

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70 Best High School Science Fair Projects in Every Subject

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45 Great Science Projects For 4th Graders

By Beth Roberts | Last Updated May 4, 2022

As science concepts are constantly changing and developing, kids have to grow up learning them at a rapid pace. However, this may be a time-consuming and frustrating procedure for parents and educators. If you are looking for a fun way to help your young learner keep up with the latest scientific breakthroughs, then here are some great projects you can use during family time to stimulate discussion about the latest scientific discoveries. These 45 science projects for 4th graders will keep your child engaged all year long!

Great Science Projects For 4th Graders

1. Transfer Of Energy

Collect some marbles! This simple transfer of energy science experiment is a wonderful method to illustrate how energy is transmitted from one thing to another. This exercise requires some thought: What happens when a traveling marble collides with numerous immobile marbles arranged in a row? Find out by tossing the first marble!

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2. Volcano Science 

The volcano science project is one of the most popular science fair projects globally, and it’s easy to see why. It’s entertaining and simple. Make your model out of an empty bottle, some cardboard, a few old newspapers, and any other odds and ends you can find about the house.

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3. Snow Volcano

Making a volcano is a traditional science experiment for youngsters that everyone should try. It mixes science education for children with the awe-inspiring effect of a snow volcano science experiment . However, the setup and cleanup might be time-consuming. This snow volcano is an easy-to-set-up and quick-to-clean-up winter science activity!

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4. Melting Snowman Winter 

Children will like this melting snowman , in which they will melt the snowman utilizing a fascinating winter scientific experiment. This snowman activity for preschoolers is ideal for toddlers, preschool, pre-k, and even elementary school students who want to sneak in a fun winter project where they will make a snowman and then melt it using snow science experiments for kids.

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5. What If There Is No Electricity?

Make this handy paper flashlight , and learn about basic electric circuit principles! This activity is an excellent experiment for children because it will undoubtedly bring the science of batteries to their attention.

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6. Make A Super Cool Lemon Battery

This instruction on constructing a lemon battery is excellent for a quick science fair project, a really fun home science experiment, or a classroom science exercise that requires no preparation. An intriguing experiment, Lemon Power is one that you can try to replicate with various fruits. Which fruit is the most effective battery? Experiment and see what happens!

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7. Melting Snowman Slime

With this incredibly glittery and goofy Melting Snowman craft activity , your children will have a BLAST! They will have to race against the clock to construct a cute snowman out of the snowman slime before the snowman melts back into a puddle. This is a fantastic snowman activity for children during December, January, and February. You have to try these basic winter activities for elementary school students if you want to succeed.

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8. How Do Antacids Work?

In this project, students investigate the chemical reaction when water is mixed with effervescent antacid tablets. This hands-on lesson demonstrates how a material might behave differently when reduced in size to the nanoscale range. It’s interesting for students to see the difference in reaction time between an unbroken antacid tablet and an unbroken one cut into several pieces.

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9. Science Project On Tooth Decay

Maintaining healthy teeth is critical for chewing food, which is necessary for digestion. Due to the critical nature of teeth, tooth decay can be a major concern. A scientific fair project enables students to demonstrate how tooth decay occurs and how it can be prevented. You’ll need numerous samples for this job, and you’re unlikely to have a collection of teeth. Do not be concerned. Eggshells are an excellent replacement, and you may obtain as many as you require.

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10. Mice And Music

If you’re testing mice in a maze, consider testing mice’s response to music . It is, in fact, an excellent experiment that has been replicated numerous times in laboratories. Scientists seek to examine the impact of various musical genres on mice to make connections with children. REMEMBER that if you choose to utilize live animals in your science fair project, you must ensure that the animals are not harmed!

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11. Exploding Snowman

Children will go crazy for these simple winter activities for elementary students, which they will want to repeat repeatedly! Children will utilize a few common household items to create the winter science experiment to produce a baking soda and vinegar scientific experiment. Prepare for exciting giggles as the snowman grows larger and larger until it POPS! Use this as a snowman activity for children during the chilly months of December, January, and February!

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12. Make A Lemon Volcano

After successfully creating a lemon battery, I found a lot of lemons asking to be utilized in another great science experiment. Therefore, what did they do? A lemon volcano can be built! There are so many lemons in our pantry that we could create the rainbow’s most beautiful creation with them all. Consider this excellent technique to utilize those lemons!

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13. Force And Motion Stations

Students in fourth-grade science already understand that magnets attract certain metal items . They will do this experiment to determine the minimum distance between a magnet and an object for attraction to occur. Combine magnets of varying diameters with objects of varying weights.

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14. Homemade Lava Lamp

This project will take around 2 hours to complete, including the experiment and the writing of the report. Children will learn about the interaction between oil and water in terms of density, as well as the presence of hydrophilic and hydrophobic substances, by participating in this activity.

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15. A Magnetic Primer Designer

How are scientists able to “replicate” DNA? They employ a technique known as Polymerase Chain Reaction or PCR. The critical component of this process is a short bit of DNA called a primer that adheres to the larger piece of DNA you wish to duplicate, called a template. In this Magnetic Primer research project , you will investigate how the amount of matches and mismatches in a primer affects its ability to adhere to, or anneal, the DNA template during polymerase chain reaction (PCR).

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16. Make Frost In A Can

Making frost in a can is a simple science experiment that kindergarten students enjoy. Kids can do this frost experiment at home without becoming cold will delight them, children. For parents, teachers, and homeschoolers alike, this easy salt and ice experiment is a great way to teach children how frost forms in the winter.

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17. Ice Salt And Water Temperature

We use ice to cool or maintain the temperature of our drinks. Nobody enjoys warm lemonade or drink, isn’t that correct? With this enjoyable, simple science for kids, teach children about the effect of ice and salt on temperature . This ice and salt experiment is quite easy to conduct and is ideal for encouraging children to investigate and think critically about their surroundings.

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18. Growing Bacteria In Petri Dishes 

Are you looking for the greatest bacteria science fair projects that will truly impress your friends and family? Steve Spangler Science has a fantastic collection of bacteria culture ideas, hands-on experiments, and science fair projects for children! Our super-fun projects and bacteria culture experiments will allow your young scientists to witness incredible and memorable bacteria growth in front of their eyes — in a petri dish in their home or classroom!

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19. Earthquake Experiment And Interactive

Set a plate of jelly on the table and then begin constructing a structure on top of it. Wobble the dish once the structure is complete so that the jelly rattles and causes the structure to collapse, showing the science of seismology .

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20. How To Do the Light Total Refraction Trick?

This may be a magic trick, but we assure you that it is not! C reate the illusion of colors appearing and disappearing , convert numbers to letters, etc. The Zip Lock Bag Water Refraction experiment is a basic and straightforward but awe-inspiring experiment. Simply submerge the zip lock bag in water to remove the image. It does appear to be magical.

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21. Fizzy Love Potion

This Valentine’s Day, bring science to life by including some hearts and a delightful WOW effect that will keep youngsters engaged and learning fun. This is a simple Love Potion valentine’s science project with a little extra zing because it is a chemistry science experiment. Thus, by incorporating these Valentine’s Day scientific experiments into your day at home or at school, you may add some learning to the Valentine’s Day theme.

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22. Bridge Project

This initiative investigates the fundamental physics of bridges . The goal is for the student to understand which shapes are the most structurally sound through experimentation, as well as the fact that many elements are taken into consideration in the field of engineering and construction. Physics is applied practically in this project, taking place in a real-world setting.

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23. Valentines Day Oobleck

Have your children ever attempted to play with Oobleck? Oobleck is an enthralling non-Newtonian fluid that possesses both liquid and solid qualities! It truly is an enthralling science experiment for children to investigate and play with. They created a Valentine’s Day science variation of Oobleck to provide a very enjoyable Valentine’s Day exercise for elementary pupils. Utilize this for your Valentine’s Day theme, scientific exploration of states of matter, or a fun Valentine’s Day idea.

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24. DIY Hovercraft

This experiment has proven to be one of the most effective methods of proving the power of air time and time again. Create a floating hovercraft and learn about friction and air pressure as you go.

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25. Floating Dry Erase Rainbow And Shapes

The following is yet another mind-blowing science demonstration that youngsters will want to perform repeatedly. Dry erase markers are used to draw on a shallow dish or plate, and then water is progressively added. This is because the marker is insoluble in water and will float to the top of the water!

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26. Glittery Purple Valentine Slime

Within 5 minutes, you can put together this incredibly entertaining Valentine Activity. Make this Valentine Slime in minutes with only a few simple supplies, some of which you may already have at home. They are easily obtained from your local craft store, Amazon, or Walmart if you do not have them. Use this in conjunction with your creative Valentine’s Day ideas for kids.

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27. Paper Airplane Science

Create your theory about paper aircraft , and then conduct your experiment to test that idea. This article will provide you with all of the information you require.

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28. Sunscreen Painting

Do your children become irritated when you apply sunscreen to them? Alternatively, you might say no outright. Demonstrate that sunscreen does protect from dangerous ultraviolet rays. Make this a full-fledged experiment by experimenting with different SPFs or comparing it to other creams or lotions that do not contain SPF.

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29. Gummy Bear Osmosis

Perhaps you’ve seen some of the interesting, basic scientific experiments available online, but one that caught our eye was testing osmosis using gummies . Jordyn C. Jordyn, one of our contributors, conducted this gummy bear osmosis experiment with her children. We’ll share her results below; however, if you want to do your experiment, here’s everything you’ll need.

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30. Magic Milk

I enjoy simple yet meaningful experiences that encourage young children to investigate, explore, and marvel at the world around them. The magic milk scientific project should be simple, quick to complete, and have a fantastic WOW moment. This experiment using milk and food coloring satisfies all three criteria! At home, in the classroom, or at your homeschool coop, try this milk science experiment for kids’ fun Valentine’s Day activity!

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31. Unpoppable Bubbles

Is it possible to hold a soap bubble in your hand ? Yes, this is correct! A small amount of glycerin makes the soap bubble layers more durable, allowing you to gently toss them from person to person without breaking them.

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32. Crystal Names

A complete list of fourth-grade science experiments would be incomplete without mentioning crystals. Growing crystals is a popular activity among children of all ages, making it an excellent opportunity to teach them about supersaturated solutions. When you first shape pipe cleaners into the shapes of their names, the traditional experiment takes on a whole new meaning.

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33. Does Mint Cool Things Down?

Mint is a perennial blooming herb that comes in a variety of varieties. It thrives in shaded, chilly, wet places. Numerous individuals appreciate mint’s mild, refreshing flavor. Mint-flavored gum, breath fresheners, and hard candies frequently advertise the cooling effect of mint by incorporating pictures of frost and ice. However, is this impression a result of the mint’s true cooling effect ?

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34. Which Food Will Rot First?

It’s critical to communicate to your children that they don’t have to wait to realize their ambitions of becoming scientists; they can start right away in their kitchens. They only need to think like a scientist to succeed. The first thing they require is for them to begin with a question. My little scientists came up with the question, “ Which food will go bad first? ” Here’s how we went about trying to figure it out!

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35. Newton’s Law

Newton’s First Law asserts that an object in motion will continue to move unless acted upon by an external force. Use a string of beads to demonstrate Newton’s Law of Gravity when the beads are pulled ever so little and then begin to fall out of a glass or other container.

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36. Layered Liquids Density 

Are you trying to come up with a nice Valentine’s Day science project for February? When the layered liquids stack up in gorgeous Valentine’s day hues, the children will be amazed. This will be one of the most memorable valentine’s science experiments that they will ever participate in. This Layered Liquids Density exercise is a terrific approach to teaching children about density through a fun, hands-on, and visually appealing density experiment that they will enjoy.

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37. Oil Spill Experiment

This oil spill exercise will assist you in gaining a better understanding of the negative impacts of oil spills on the marine ecosystem. We have all heard of oil spills and their devastation of Mother Earth and the marine life that depends on it. However, those who do not encounter these impacts firsthand are unaware of their magnitude.

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38. Beach Erosion Demonstration

Where has the beach vanished? Have you ever observed how the coastline changes after a large storm? Why does the seashore have a different appearance? You’re observing the effect of coastal erosion, and you can now set up a beach erosion activity and demonstration to demonstrate to your children how it works. This simple and enjoyable ocean science exercise is certain to be a favorite with your children, as it incorporates hands-on learning!

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39. A Ping Pong Catapult

If you were a member of a raiding army in the Middle Ages, a catapult would have been extremely useful for destroying castle walls. However, only if you could accurately aim it! You will experiment with catapult technology in this science project. With a rubber band-powered catapult, you will launch ping pong balls into the air. The catapult design makes it simple to measure and repeat the force with which the ball is launched and its direction, allowing you to establish the optimal catapult settings for reliably hitting the goal.

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40. Leprechaun Rocks

When it comes to concealing their gold, leprechauns are cunning. It is insufficient to seek refuge at the end of the rainbow. As a result, even if you reach the end of the rainbow, you will not discover a gold mine. They’d never make it that simple. However, you may come upon some strange green rocks – leprechaun rocks if you look about. With this leprechaun rocks scientific experiment , you’ll discover the secret science of luring the Leprechaun to release their treasure.

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41. Amazing Food Coloring Flower 

This simple Flower Science Experiment will teach children about the elements of a flower, the floral’s life cycle, and capillary action – all while engaging them in a wonderfully beautiful flower activity! Children will be able to paint flowers using this flower experiment – even turning white flowers into two-color blooms! This color-changing flower experiment is one of the most incredible kindergarten science experiments I’ve ever seen. Get started by printing out the free food coloring flower experiment worksheet.

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42. Make An Anemometer

Using your very own anemometer, determine the wind speed ! Simple earth science is demonstrated using a garden contraption constructed of paper cups, tape, straws, a pencil, and a thumbtack.

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43. Simple Geranium Photosynthesis

This SIMPLICITY photosynthesis project enables children to learn about photosynthesis visually. With just a few readily available supplies, you can do this plant experiment for kids in minutes. Your children will like learning and retain much more information about what they do than what they hear. And introducing your children to a world of inquiry, curiosity, and trial and error will prepare them for success in any endeavor they pursue in life.

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44. Balloon Rocket

The balloon rocket experiment is an excellent example of a children’s science project that may be carried out at home, in the classroom, or at science fairs. It’s always enjoyable to work on science projects and learn about the research’s rationale. The balloon rocket is an excellent science experiment for 4th Grade Science Projects.

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45. Make A DIY Weather Vane

As spring approaches, we observe various changes in the weather, making it an excellent time to investigate with some fun weather activities for kids and weather experiments for kids to help children learn more about wind, rain, clouds, and more! I’ll demonstrate how to create an EASY weather vane , a DIY compass, and additional weather topics that 4th students would enjoy. Therefore, get a few readily available materials and construct this handmade weather vane today.

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science-fair-projects-4th-grade

Is your 4th grader getting ready for his/her first science fair? Fear not, we have rounded up a list of 25 great fourth grade science fair ideas to get you started! Remember, the whole point of a science fair is for your child to learn about science in a hands-on way, so resist the temptation to “help” too much. Plus we’ve deliberately chosen easy projects that your fourth grader should be able to do with minimal supervision or help from an adult.

In this post, we’ve assembled 25 easy science fair project ideas for 4th grade. We link each project description to its original source, where you can get more information and step-by-step instructions.

volcano-science-fair-project-4th-grade-150x150

Volcano Science

Learn all about volcanoes, then make one of your own!

Recommended for Grades 4.

Source: www.scienceprojectlab.com

when-life-gives-you-lemons-make-a-battery-science-fair-project-4th-grade-5th-grade

When life gives you lemons, make a battery!

Lemon Power is a fascinating experiment that you can attempt to duplicate with other fruit. Which fruit makes the best battery? Experiment and find out!

Recommended for Grades 4-5.

Source: www.kidsactivitiesblog.com

science-fair-project-on-tooth-decay-4th-grade-5th-grade

A Science Fair Project on Tooth Decay by Jennifer Elrod

Doing an experiment on tooth decay is both beneficial and interesting. It only requires a few inexpensive materials and a week’s worth of observation and record keeping. The experiment requires no work after the initial setup.

Source: www.ehow.com

homemade-lava-lamp-science-fair-project-4th-grade

Homemade Lava Lamp by Alexa Bach McElrone

This project takes about 2 hours to complete the experiment and the write-up. Kids will get to explore the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

Source: http://www.education.com

how-light-affects-germination-and-growth-science-fair-project-4th-grade

How the Amount of Light Affects Germination and Growth.

The goal of the project is to find out how different lighting conditions affect seeds germination and growth. This article will give you the step by step procedure for this project.

growing-bacteria-in-petri-dishes-science-fair-project-4th-grade-5th-grade

Growing Bacteria in Petri Dishes by Steve Spangler

A Petri dish prepared with nutrient agar (a seaweed derivative with beef nutrients) is an ideal food source for the bacteria you’ll be growing. Collect samples from around the house or classroom and record the results for the one with the most bacteria.

Source: www.stevespanglerscience.com

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Bridge Project by Sarah Benton

This project explores the basic physics of bridges. The goal is that the student will develop an understanding through experimentation of which shapes are the most structurally strong, and that many factors are taken into account in engineering and building.

Source: www.education.com

paper-airplane-science-fair-project-4th-grade-5th-grade

Paper Airplane Science Fair Project

Create your own hypothesis about paper airplanes, then start your experiment. This article gives you all of the information you need.

Source: www.easy-science-fair-projects.net

barometer-science-fair-project-4th-grade-5th-grade

Barometer Science Project

Make your own barometer and then use it to test weather conditions on a dry day, a rainy day, a cloudy day, etc.

Source: www.hubpages.com

how-do-antacids-work-science-fair-project-4th-grade-5th-grade

How Do Antacids Work?

In this activity, learners explore the chemical reaction between water and effervescent antacid tablets. This hands-on activity models how a material can act differently when it’s nanometer-sized. Learners compare the reaction rate of an effervescent antacid tablet that is broken in half with one that is broken into many pieces.

Source: www.howtosmile.org

gummy-bear-osmosis-science-fair-project-4th-grade-5th-grade

Gummy Bear Osmosis

Do Gummy Bears dissolve in water? In vinegar? In liquid soap? Test your hypothesis on a variety of liquids and find out.

Source: www.homeschool.com

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Is Your Dog’s Mouth Cleaner than Your Mouth?

Is it a myth or fact that a dog’s mouth has less germs that a human’s mouth? Follow these simply instructions and test for yourself.

does-mint-actually-cool-things-down-science-fair-project-4th-grade-5th-grade

Does Mint Actually Cool Things Down? By Jennifer Penn-Chiu

Mint-flavored gum, breath fresheners, and hard candies often advertise that mint has a cooling effect, and use images of frost and ice to demonstrate this sensation. But is this sensation a result of the mint actually lowering temperatures?

which-food-will-rot-first-science-fair-project-4th-grade-5th-grade

Which Food Will Rot First?

This example tests the rotting of 4 different foods, but your scientist can test as many different types of food as they can imagine.

Source: www.notimeforflashcards.com

helmet-crash-test-science-fair-project-4th-grade-5th-grade

Helmet Crash Test by Steve Spangler

Not only will your little scientist gain a better appreciation for using a helmet, she can also learn more about the science behind it. Try testing different size melons and different height drops.

Source: www.parenting.com

can-magnets-affect-growth-process-of-radishes-science-fair-project-4th-grade-5th-grade

Can Magnets Affect the Growth Process of Radish?

In this experiment, your scientist will determine whether magnets make radish plants grow faster or slower.

Source: www.buzzle.com

playground-teeter-totter-science-fair-project-4th-grade-5th-grade

Playground Teeter-Totter

The goal of this project is to create a compound machine using pulleys and levers that would be able to lift a Barbie doll up and down by pulling a string by the player. A common problem on the playground is that you sometimes can’t find another person to go on the teeter totter with you.

Recommended for Grades 4-6.

Source: www.projects.juliantrubin.com

growing-mold-garden-science-fair-project-4th-grade-5th-grade

Growing a “Mold Garden”

The goal of this project is to grow different mold species on different kind of substrates to find out if the same bread mold species will grow on all of them. Do all mold species have the same taste and preferences?!

Recommended for Grades 4-5

Source; www.scienceprojectlab.com

making-a-sundial-science-fair-project-4th-grade-5th-grade

Making a Simple Sundial and Testing Its Accuracy

Learn how to make a sundial and then test its accuracy with a series of experiments.

Recommended for Grades 4-6

Source: www.explorable.com

a-pint-pot-planet-science-fair-project-4th-grade-5th-grade

A Pint Pot Planet

This experiment will demonstrate the water cycle and test different hypotheses on rainfall and the water cycle.

Source: www.raisingsparks.com

build-a-paper-bridge-science-fair-project-4th-grade-5th-grade

Build and Test a Paper Bridge

This project helps you discover how to create a strong bridge using just paper. Instructions also offer some additional parameters to add into the experiment.

Recommended for grades 4-5

Source: www.teacherstryscience.org

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Paper Airplane Experiment

Experiment to find the best design for a paper airplane

Source: ScienceFairMath

use-energy-in-peanut-science-fair-project-4th-grade-5th-grade-6th-grade

Use the Energy in a Peanut to Heat Water

Just about everything has potential energy stored in it. The problem is releasing that energy to be able to do some work.

A tiny peanut contains stored chemical energy. When we eat them, the stored energy is converted by our bodies so we can do work. We can also use the energy in a peanut to heat a container of water.

Recommended for grades 4-6

Source: www.energyquest.ca.gov

exploring-oil-spills-science-fair-project-4th-grade-5th-grade-6th-grade

Oil Spill Experiment

This experiment will demonstrate the detrimental effects of oil spills to marine life

make-your-microscope-with-water-science-fair-project-4th-grade-5th-grade-6th-grade

Make Your Own Microscope with Water

Make a simple microscope using water and take a closer look at the world around you.

The lens you create with water works like a microscope or magnifying glass, allowing you to see objects in much greater detail than if you were just looking with the naked eye.

Source:  www.sciencekids.co.nz

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Sat / act prep online guides and tips, 37 cool science experiments for kids to do at home.

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General Education

feature_scienceexperiment

Are you looking for cool science experiments for kids at home or for class? We've got you covered! We've compiled a list of 37 of the best science experiments for kids that cover areas of science ranging from outer space to dinosaurs to chemical reactions. By doing these easy science experiments, kids will make their own blubber and see how polar bears stay warm, make a rain cloud in a jar to observe how weather changes, create a potato battery that'll really power a lightbulb, and more.

Below are 37 of the best science projects for kids to try. For each one we include a description of the experiment, which area(s) of science it teaches kids about, how difficult it is (easy/medium/hard), how messy it is (low/medium/high), and the materials you need to do the project. Note that experiments labelled "hard" are definitely still doable; they just require more materials or time than most of these other science experiments for kids.

#1: Insect Hotels

  • Teaches Kids About: Zoology
  • Difficulty Level: Medium
  • Messiness Level: Medium

Insect hotels can be as simple (just a few sticks wrapped in a bundle) or as elaborate as you'd like, and they're a great way for kids to get creative making the hotel and then get rewarded by seeing who has moved into the home they built. After creating a hotel with hiding places for bugs, place it outside (near a garden is often a good spot), wait a few days, then check it to see who has occupied the "rooms." You can also use a bug ID book or app to try and identify the visitors.

  • Materials Needed
  • Shadow box or other box with multiple compartments
  • Hot glue gun with glue
  • Sticks, bark, small rocks, dried leaves, bits of yarn/wool, etc.

insect hotel

#2: DIY Lava Lamp

  • Teaches Kids About: Chemical reactions
  • Difficulty Level: Easy

In this quick and fun science experiment, kids will mix water, oil, food coloring, and antacid tablets to create their own (temporary) lava lamp . Oil and water don't mix easily, and the antacid tablets will cause the oil to form little globules that are dyed by the food coloring. Just add the ingredients together and you'll end up with a homemade lava lamp!

  • Vegetable oil
  • Food coloring
  • Antacid tablets

#3: Magnetic Slime

  • Teaches Kids About: Magnets
  • Messiness Level: High (The slime is black and will slightly dye your fingers when you play with it, but it washes off easily.)

A step up from silly putty and Play-Doh, magnetic slime is fun to play with but also teaches kids about magnets and how they attract and repel each other. Some of the ingredients you aren't likely to have around the house, but they can all be purchased online. After mixing the ingredients together, you can use the neodymium magnet (regular magnets won't be strong enough) to make the magnetic slime move without touching it!

  • Liquid starch
  • Adhesive glue
  • Iron oxide powder
  • Neodymium (rare earth) magnet

#4: Baking Soda Volcanoes

  • Teaches Kids About: Chemical reactions, earth science
  • Difficulty Level: Easy-medium
  • Messiness Level: High

Baking soda volcanoes are one of the classic science projects for kids, and they're also one of the most popular. It's hard to top the excitement of a volcano erupting inside your home. This experiment can also be as simple or in-depth as you like. For the eruption, all you need is baking soda and vinegar (dishwashing detergent adds some extra power to the eruption), but you can make the "volcano" as elaborate and lifelike as you wish.

  • Baking soda
  • Dishwashing detergent
  • Large mason jar or soda bottle
  • Playdough or aluminum foil to make the "volcano"
  • Additional items to place around the volcano (optional)
  • Food coloring (optional)

#5: Tornado in a Jar

  • Teaches Kids About: Weather
  • Messiness Level: Low

This is one of the quick and easy and science experiments for kids to teach them about weather. It only takes about five minutes and a few materials to set up, but once you have it ready you and your kids can create your own miniature tornado whose vortex you can see and the strength of which you can change depending on how quickly you swirl the jar.

  • Glitter (optional)

#6: Colored Celery Experiment

  • Teaches Kids About: Plants

This celery science experiment is another classic science experiment that parents and teachers like because it's easy to do and gives kids a great visual understanding of how transpiration works and how plants get water and nutrients. Just place celery stalks in cups of colored water, wait at least a day, and you'll see the celery leaves take on the color of the water. This happens because celery stalks (like other plants) contain small capillaries that they use to transport water and nutrients throughout the plant.

  • Celery stalks (can also use white flowers or pale-colored cabbage)

#7: Rain Cloud in a Jar

This experiment teaches kids about weather and lets them learn how clouds form by making their own rain cloud . This is definitely a science project that requires adult supervision since it uses boiling water as one of the ingredients, but once you pour the water into a glass jar, the experiment is fast and easy, and you'll be rewarded with a little cloud forming in the jar due to condensation.

  • Glass jar with a lid
  • Boiling water
  • Aerosol hairspray

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#8: Edible Rock Candy

  • Teaches Kids About: Crystal formation

It takes about a week for the crystals of this rock candy experiment to form, but once they have you'll be able to eat the results! After creating a sugar solution, you'll fill jars with it and dangle strings in them that'll slowly become covered with the crystals. This experiment involves heating and pouring boiling water, so adult supervision is necessary, once that step is complete, even very young kids will be excited to watch crystals slowly form.

  • Large saucepan
  • Clothespins
  • String or small skewers
  • Candy flavoring (optional)

#9: Water Xylophone

  • Teaches Kids About: Sound waves

With just some basic materials you can create your own musical instrument to teach kids about sound waves. In this water xylophone experiment , you'll fill glass jars with varying levels of water. Once they're all lined up, kids can hit the sides with wooden sticks and see how the itch differs depending on how much water is in the jar (more water=lower pitch, less water=higher pitch). This is because sound waves travel differently depending on how full the jars are with water.

  • Wooden sticks/skewers

#10: Blood Model in a Jar

  • Teaches Kids About: Human biology

This blood model experiment is a great way to get kids to visual what their blood looks like and how complicated it really is. Each ingredient represents a different component of blood (plasma, platelets, red blood cells, etc.), so you just add a certain amount of each to the jar, swirl it around a bit, and you have a model of what your blood looks like.

  • Empty jar or bottle
  • Red cinnamon candies
  • Marshmallows or dry white lima beans
  • White sprinkles

#11: Potato Battery

  • Teaches Kids About: Electricity
  • Difficulty Level: Hard

Did you know that a simple potato can produce enough energy to keep a light bulb lit for over a month? You can create a simple potato battery to show kids. There are kits that provide all the necessary materials and how to set it up, but if you don't purchase one of these it can be a bit trickier to gather everything you need and assemble it correctly. Once it's set though, you'll have your own farm grown battery!

  • Fresh potato
  • Galvanized nail
  • Copper coin

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#12: Homemade Pulley

  • Teaches Kids About: Simple machines

This science activity requires some materials you may not already have, but once you've gotten them, the homemade pulley takes only a few minutes to set up, and you can leave the pulley up for your kids to play with all year round. This pulley is best set up outside, but can also be done indoors.

  • Clothesline
  • 2 clothesline pulleys

#13: Light Refraction

  • Teaches Kids About: Light

This light refraction experiment takes only a few minutes to set up and uses basic materials, but it's a great way to show kids how light travels. You'll draw two arrows on a sticky note, stick it to the wall, then fill a clear water bottle with water. As you move the water bottle in front of the arrows, the arrows will appear to change the direction they're pointing. This is because of the refraction that occurs when light passes through materials like water and plastic.

  • Sticky note
  • Transparent water bottle

#14: Nature Journaling

  • Teaches Kids About: Ecology, scientific observation

A nature journal is a great way to encourage kids to be creative and really pay attention to what's going on around them. All you need is a blank journal (you can buy one or make your own) along with something to write with. Then just go outside and encourage your children to write or draw what they notice. This could include descriptions of animals they see, tracings of leaves, a drawing of a beautiful flower, etc. Encourage your kids to ask questions about what they observe (Why do birds need to build nests? Why is this flower so brightly colored?) and explain to them that scientists collect research by doing exactly what they're doing now.

  • Blank journal or notebook
  • Pens/pencils/crayons/markers
  • Tape or glue for adding items to the journal

#15: DIY Solar Oven

  • Teaches Kids About: Solar energy

This homemade solar oven definitely requires some adult help to set up, but after it's ready you'll have your own mini oven that uses energy from the sun to make s'mores or melt cheese on pizza. While the food is cooking, you can explain to kids how the oven uses the sun's rays to heat the food.

  • Aluminum foil
  • Knife or box cutter
  • Permanent marker
  • Plastic cling wrap
  • Black construction paper

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#16: Animal Blubber Simulation

  • Teaches Kids About: Ecology, zoology

If your kids are curious about how animals like polar bears and seals stay warm in polar climates, you can go beyond just explaining it to them; you can actually have them make some of their own blubber and test it out. After you've filled up a large bowl with ice water and let it sit for a few minutes to get really cold, have your kids dip a bare hand in and see how many seconds they can last before their hand gets too cold. Next, coat one of their fingers in shortening and repeat the experiment. Your child will notice that, with the shortening acting like a protective layer of blubber, they don't feel the cold water nearly as much.

  • Bowl of ice water

#17: Static Electricity Butterfly

This experiment is a great way for young kids to learn about static electricity, and it's more fun and visual than just having them rub balloons against their heads. First you'll create a butterfly, using thick paper (such as cardstock) for the body and tissue paper for the wings. Then, blow up the balloon, have the kids rub it against their head for a few seconds, then move the balloon to just above the butterfly's wings. The wings will move towards the balloon due to static electricity, and it'll look like the butterfly is flying.

  • Tissue paper
  • Thick paper
  • Glue stick/glue

#18: Edible Double Helix

  • Teaches Kids About: Genetics

If your kids are learning about genetics, you can do this edible double helix craft to show them how DNA is formed, what its different parts are, and what it looks like. The licorice will form the sides or backbone of the DNA and each color of marshmallow will represent one of the four chemical bases. Kids will be able to see that only certain chemical bases pair with each other.

  • 2 pieces of licorice
  • 12 toothpicks
  • Small marshmallows in 4 colors (9 of each color)
  • 5 paperclips

#19: Leak-Proof Bag

  • Teaches Kids About: Molecules, plastics

This is an easy experiment that'll appeal to kids of a variety of ages. Just take a zip-lock bag, fill it about ⅔ of the way with water, and close the top. Next, poke a few sharp objects (like bamboo skewers or sharp pencils) through one end and out the other. At this point you may want to dangle the bag above your child's head, but no need to worry about spills because the bag won't leak? Why not? It's because the plastic used to make zip-lock bags is made of polymers, or long chains of molecules that'll quickly join back together when they're forced apart.

  • Zip-lock bags
  • Objects with sharp ends (pencils, bamboo skewers, etc.)

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#20: How Do Leaves Breathe?

  • Teaches Kids About: Plant science

It takes a few hours to see the results of this leaf experiment , but it couldn't be easier to set up, and kids will love to see a leaf actually "breathing." Just get a large-ish leaf, place it in a bowl (glass works best so you can see everything) filled with water, place a small rock on the leaf to weigh it down, and leave it somewhere sunny. Come back in a few hours and you'll see little bubbles in the water created when the leaf releases the oxygen it created during photosynthesis.

  • Large bowl (preferably glass)
  • Magnifying glass (optional)

#21: Popsicle Stick Catapults

Kids will love shooting pom poms out of these homemade popsicle stick catapults . After assembling the catapults out of popsicle sticks, rubber bands, and plastic spoons, they're ready to launch pom poms or other lightweight objects. To teach kids about simple machines, you can ask them about how they think the catapults work, what they should do to make the pom poms go a farther/shorter distance, and how the catapult could be made more powerful.

  • Popsicle sticks
  • Rubber bands
  • Plastic spoons
  • Paint (optional)

#22: Elephant Toothpaste

You won't want to do this experiment near anything that's difficult to clean (outside may be best), but kids will love seeing this " elephant toothpaste " crazily overflowing the bottle and oozing everywhere. Pour the hydrogen peroxide, food coloring, and dishwashing soap into the bottle, and in the cup mix the yeast packet with some warm water for about 30 seconds. Then, add the yeast mixture to the bottle, stand back, and watch the solution become a massive foamy mixture that pours out of the bottle! The "toothpaste" is formed when the yeast removed the oxygen bubbles from the hydrogen peroxide which created foam. This is an exothermic reaction, and it creates heat as well as foam (you can have kids notice that the bottle became warm as the reaction occurred).

  • Clean 16-oz soda bottle
  • 6% solution of hydrogen peroxide
  • 1 packet of dry yeast
  • Dishwashing soap

#23: How Do Penguins Stay Dry?

Penguins, and many other birds, have special oil-producing glands that coat their feathers with a protective layer that causes water to slide right off them, keeping them warm and dry. You can demonstrate this to kids with this penguin craft by having them color a picture of a penguin with crayons, then spraying the picture with water. The wax from the crayons will have created a protective layer like the oil actual birds coat themselves with, and the paper won't absorb the water.

  • Penguin image (included in link)
  • Spray bottle
  • Blue food coloring (optional)

body_erosion

#24: Rock Weathering Experiment

  • Teaches Kids About: Geology

This mechanical weathering experiment teaches kids why and how rocks break down or erode. Take two pieces of clay, form them into balls, and wrap them in plastic wrap. Then, leave one out while placing the other in the freezer overnight. The next day, unwrap and compare them. You can repeat freezing the one piece of clay every night for several days to see how much more cracked and weathered it gets than the piece of clay that wasn't frozen. It may even begin to crumble. This weathering also happens to rocks when they are subjected to extreme temperatures, and it's one of the causes of erosion.

  • Plastic wrap

#25: Saltwater Density

  • Teaches Kids About: Water density

For this saltwater density experiment , you'll fill four clear glasses with water, then add salt to one glass, sugar to one glass, and baking soda to one glass, leaving one glass with just water. Then, float small plastic pieces or grapes in each of the glasses and observe whether they float or not. Saltwater is denser than freshwater, which means some objects may float in saltwater that would sink in freshwater. You can use this experiment to teach kids about the ocean and other bodies of saltwater, such as the Dead Sea, which is so salty people can easily float on top of it.

  • Four clear glasses
  • Lightweight plastic objects or small grapes

#26: Starburst Rock Cycle

With just a package of Starbursts and a few other materials, you can create models of each of the three rock types: igneous, sedimentary, and metamorphic. Sedimentary "rocks" will be created by pressing thin layers of Starbursts together, metamorphic by heating and pressing Starbursts, and igneous by applying high levels of heat to the Starbursts. Kids will learn how different types of rocks are forms and how the three rock types look different from each other.

  • Toaster oven

#27: Inertia Wagon Experiment

  • Teaches Kids About: Inertia

This simple experiment teaches kids about inertia (as well as the importance of seatbelts!). Take a small wagon, fill it with a tall stack of books, then have one of your children pull it around then stop abruptly. They won't be able to suddenly stop the wagon without the stack of books falling. You can have the kids predict which direction they think the books will fall and explain that this happens because of inertia, or Newton's first law.

  • Stack of books

#28: Dinosaur Tracks

  • Teaches Kids About: Paleontology

How are some dinosaur tracks still visible millions of years later? By mixing together several ingredients, you'll get a claylike mixture you can press your hands/feet or dinosaur models into to make dinosaur track imprints . The mixture will harden and the imprints will remain, showing kids how dinosaur (and early human) tracks can stay in rock for such a long period of time.

  • Used coffee grounds
  • Wooden spoon
  • Rolling pin

#29: Sidewalk Constellations

  • Teaches Kids About: Astronomy

If you do this sidewalk constellation craft , you'll be able to see the Big Dipper and Orion's Belt in the daylight. On the sidewalk, have kids draw the lines of constellations (using constellation diagrams for guidance) and place stones where the stars are. You can then look at astronomy charts to see where the constellations they drew will be in the sky.

  • Sidewalk chalk
  • Small stones
  • Diagrams of constellations

#30: Lung Model

By building a lung model , you can teach kids about respiration and how their lungs work. After cutting off the bottom of a plastic bottle, you'll stretch a balloon around the opened end and insert another balloon through the mouth of the bottle. You'll then push a straw through the neck of the bottle and secure it with a rubber band and play dough. By blowing into the straw, the balloons will inflate then deflate, similar to how our lungs work.

  • Plastic bottle
  • Rubber band

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#31: Homemade Dinosaur Bones

By mixing just flour, salt, and water, you'll create a basic salt dough that'll harden when baked. You can use this dough to make homemade dinosaur bones and teach kids about paleontology. You can use books or diagrams to learn how different dinosaur bones were shaped, and you can even bury the bones in a sandpit or something similar and then excavate them the way real paleontologists do.

  • Images of dinosaur bones

#32: Clay and Toothpick Molecules

There are many variations on homemade molecule science crafts . This one uses clay and toothpicks, although gumdrops or even small pieces of fruit like grapes can be used in place of clay. Roll the clay into balls and use molecule diagrams to attach the clay to toothpicks in the shape of the molecules. Kids can make numerous types of molecules and learn how atoms bond together to form molecules.

  • Clay or gumdrops (in four colors)
  • Diagrams of molecules

#33: Articulated Hand Model

By creating an articulated hand model , you can teach kids about bones, joints, and how our hands are able to move in many ways and accomplish so many different tasks. After creating a hand out of thin foam, kids will cut straws to represent the different bones in the hand and glue them to the fingers of the hand models. You'll then thread yarn (which represents tendons) through the straws, stabilize the model with a chopstick or other small stick, and end up with a hand model that moves and bends the way actual human hands do.

  • Straws (paper work best)
  • Twine or yarn

#34: Solar Energy Experiment

  • Teaches Kids About: Solar energy, light rays

This solar energy science experiment will teach kids about solar energy and how different colors absorb different amounts of energy. In a sunny spot outside, place six colored pieces of paper next to each other, and place an ice cube in the middle of each paper. Then, observe how quickly each of the ice cubes melt. The ice cube on the black piece of paper will melt fastest since black absorbs the most light (all the light ray colors), while the ice cube on the white paper will melt slowest since white absorbs the least light (it instead reflects light). You can then explain why certain colors look the way they do. (Colors besides black and white absorb all light except for the one ray color they reflect; this is the color they appear to us.)

  • 6 squares of differently colored paper/cardstock (must include black paper and white paper)

#35: How to Make Lightning

  • Teaches Kids About: Electricity, weather

You don't need a storm to see lightning; you can actually create your own lightning at home . For younger kids this experiment requires adult help and supervision. You'll stick a thumbtack through the bottom of an aluminum tray, then stick the pencil eraser to the pushpin. You'll then rub the piece of wool over the aluminum tray, and then set the tray on the Styrofoam, where it'll create a small spark/tiny bolt of lightning!

  • Pencil with eraser
  • Aluminum tray or pie tin
  • Styrofoam tray

#36: Tie-Dyed Milk

  • Teaches Kids About: Surface tension

For this magic milk experiment , partly fill a shallow dish with milk, then add a one drop of each food coloring color to different parts of the milk. The food coloring will mostly stay where you placed it. Next, carefully add one drop of dish soap to the middle of the milk. It'll cause the food coloring to stream through the milk and away from the dish soap. This is because the dish soap breaks up the surface tension of the milk by dissolving the milk's fat molecules.

  • Shallow dish
  • Milk (high-fat works best)

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#37: How Do Stalactites Form?

Have you ever gone into a cave and seen huge stalactites hanging from the top of the cave? Stalactites are formed by dripping water. The water is filled with particles which slowly accumulate and harden over the years, forming stalactites. You can recreate that process with this stalactite experiment . By mixing a baking soda solution, dipping a piece of wool yarn in the jar and running it to another jar, you'll be able to observe baking soda particles forming and hardening along the yarn, similar to how stalactites grow.

  • Safety pins
  • 2 glass jars

Summary: Cool Science Experiments for Kids

Any one of these simple science experiments for kids can get children learning and excited about science. You can choose a science experiment based on your child's specific interest or what they're currently learning about, or you can do an experiment on an entirely new topic to expand their learning and teach them about a new area of science. From easy science experiments for kids to the more challenging ones, these will all help kids have fun and learn more about science.

What's Next?

Are you also interested in pipe cleaner crafts for kids? We have a guide to some of the best pipe cleaner crafts to try!

Looking for multiple different slime recipes? We tell you how to make slimes without borax and without glue as well as how to craft the ultimate super slime .

Want to learn more about clouds? Learn how to identify every cloud in the sky with our guide to the 10 types of clouds .

Want to know the fastest and easiest ways to convert between Fahrenheit and Celsius? We've got you covered! Check out our guide to the best ways to convert Celsius to Fahrenheit (or vice versa) .

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Christine graduated from Michigan State University with degrees in Environmental Biology and Geography and received her Master's from Duke University. In high school she scored in the 99th percentile on the SAT and was named a National Merit Finalist. She has taught English and biology in several countries.

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Great Science Experiments for Kids

August 19, 2018 By Emma Vanstone 10 Comments

I’ve found my 5 year old to be incredibly curious at the moment, always asking questions and wanting to know how things work. Even something as simple as a rain gauge has been VERY exciting for her. With that in mind I’ve pulled together a list of great science experiments for kids of all ages! The age ranges mentioned in this post are just a guide, most science is fun for all ages if you tweak the activity a little bit.

I’ve also got a couple of science books available if you fancy taking a look.

Science Experiments for 4-6 Year Olds

B ubble snakes are very easy to make. Try blowing harder and then more slowly and look for rainbows in the bubbles.

Bubble Snake - bubble experiment for kids

Practice drawing or writing with fizzy paint .

Try some ice painting . This always keeps my children busy for ages. Another idea is to freeze a 3D shape and paint that. Cake moulds work really well for this.

Painting on ice

Make some filter paper butterflies . This is a fun creative, chromatography experiment.

These superhero themed cress heads are super cute and perfect for learning about germinations.

Superhero cress heads

Find out how many of your own feet tall you are. Is there a pattern?

Science Experiments for 4 and 5 year olds

Children can learn abour what’s inside their body by drawing around themselves or a friend on a roll of paper and then adding in a skeleton or even organs.

A pine cone weather station is a fun way to learn about the weather. Thanks to Rainy Day Mum for this one.

pinecone weather station

Explore numbers with a Numeracy at Home box.

Science Experiments for 4 and 5 year olds

Learn about static electricity with these  jumping frogs .

Static electricity investigation using a balloon and different types of paper - fun science experiment for little ones

Trick your eyes with this super easy optical illusion .

Try to make different shaped bubbles, does it work?

Homemade bubble wands, made using straws and pipecleaners

Learn about waterproof materials with this fun activity using soft toys or try my Save the Dinosaur waterproofing activity .

Waterproof

Make a magnet maze and learn about magnetism . Can you make a huge version?

magnet maze

Explore freezing and melting with slushy drinks, you could even try some colour mixing.

Make some coloured ice cubes for more fizzy fun or how about some coloured rocks ?

Find out about arm span and its relation to height in this easy activity.

Make some s hadow puppets  or a shadow frame and then put on a show. What happens to the shadow when you move it away from the light source?

shadow activities

Make mixture with toys . This is great for starting to lean about properties of materials.

Try some colour mixing with jelly .

Sort Ariel’s treasures into groups depending on their properties.

Sort Ariels Cave

Start to learn about what conditions green plants need to grow with this cress caterpillar .

Have some messy fun with oobleck !

Make some simple patterns using DUPLO.

How about setting up a   chemistry lab in the kitchen? all you need is some coloured water, oil and pipettes.

oil and water

Science Experiments for 7-11 Year olds

Try a bit of science magic? Can you make an egg bounce ?

egg with no shell

Learn about oil and water not mixing and density with this density jar . Experiment with different objects floating on the layers to make it more fun. What happens when you shake it?

Density jar - fun science experiment for kids

How about making some simple ‘shooters ‘ like Red Ted Art , what happens to them when it’s windy? Do they move further if you blow harder?

We LOVE these candy science experiments !

Earthquake Science Experiment - Candy towers

Learn how to clean dirty water using filters or design and build a toy filter .

If there’s a Science Fair coming up, we’ve got lots of easy and impressive science fair projects to try too!

Find out what makes the best sandcastle? Is dry or wet sand better?

More great science experiments for kids

Adult help is definitely needed for this one, but a Water Powered Bottle Rocket is always a big hit in our house.

How to make a bottle rocket

Make honeycomb, pancakes, meringue and more in this collection of tasty kitchen science experiments and activities.

If it’s coming up to Valentine’s Day we’ve got lots of easy Valentine science experiments and activities too.

We’ve got collections of science experiments and investigations whatever the time of year:

Make a snow volcano, frost on a can and lots more cool winter science experiments .

Make a multicoloured cress caterpillar, colourful flowers and lots more spring science experiments for kid s .

science project 4

Stay busy all summer long with our huge collection of summer science experiments .

If autumn is more your season, we’ve got lots of fall related science activities too!

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Last Updated on March 29, 2020 by Emma Vanstone

Safety Notice

Science Sparks ( Wild Sparks Enterprises Ltd ) are not liable for the actions of activity of any person who uses the information in this resource or in any of the suggested further resources. Science Sparks assume no liability with regard to injuries or damage to property that may occur as a result of using the information and carrying out the practical activities contained in this resource or in any of the suggested further resources.

These activities are designed to be carried out by children working with a parent, guardian or other appropriate adult. The adult involved is fully responsible for ensuring that the activities are carried out safely.

Reader Interactions

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February 14, 2014 at 9:45 am

Wow wow wow! So much to try …. good job it is half term!!

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February 14, 2014 at 10:00 am

So many fabulous ideas, I think Syd would enjoy some of these at 2 and a half- and my older boy too- if this rain carries on we will be back for a look during half term next week!

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February 14, 2014 at 10:33 am

This is a great list of activities for half term! We had traffic light jelly last night and the kids wanted to know how I got the colours to stick. I love their curiosity at this age.

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February 14, 2014 at 2:26 pm

These are FANTASTIC and super fun activities!! Thank you.

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February 14, 2014 at 5:54 pm

Bookmarking this for next week as I fear with this bad weather we might be house bound most of half term!

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February 14, 2014 at 11:16 pm

Ohh nice Emma, I think my girls would enjoy these and they are nearly 7! Mich x

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February 05, 2015 at 8:18 pm

So glad to come across this!! These activities will be a great addition to our family parties and get together this year! Thank you!

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September 05, 2018 at 1:25 pm

Wonderful post! We will be linking to this particularly great content on our site. Keep up the great writing.

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February 27, 2019 at 9:07 am

Wow! What a brilliant idea! Really smart & great. Appreciate your thoughts. Thanks a lot for sharing this wonderful experience with us.

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May 13, 2019 at 3:38 am

These are great activities for my kids. Perfect for family bonding time.

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20 Fun & Engaging Preschool Camping Activities

20 team building activities for middle school, 28 awesome alphabet activities for pre-schoolers, 25 edible science experiments for kids, 20 kindness activities for middle school, 20+ engineering kits for high school students, what is flippity and how does it work for teachers, 55 8th grade books students should have on their bookshelves, 20 kiddie pool games sure to splash up some fun, 64 super fun field day games, 26 of the best 4th grade science projects and experiments.

science project 4

Are you looking for science activities to do with your 4th graders? No sweat. We have you covered. Check out our list of 26 science projects and experiments that you can try with your 4th graders this month.

  • Hand-Eye Coordination and Age | All-Science-Fair-Projects.com – Grades 2-5, Use a stopwatch and ping-pong ball to find out how hand-eye coordination changes as children get older.
  • What Do Yeast Eat…and How Can You Tell? | Education.com – Grades 2-5, The objective of this project is to examine which foods yeast cells eat.
  • How Do Antacids Work? | Biochemistry Discovery Lab – Grades 3-6, Simulate out how antacids work to treat heartburn by using fake stomach enzymes.
  • Mice & Music | Hubpages.com – Grades 3-6, Find out if music affects the performance of mice in a maze.
  • A Magnetic Primer Designer | Sciencebuddies.org – Grades 3-6 Biology project that utilizes magnets to mimic the process that scientists use to replicate DNA, using the polymerase chain reaction.
  • Growing Bacteria in Petri Dishes | Stevespanglerscience.com – Grades 3-6 biology In this science fair project, you must find samples of bacteria from an assortment of surfaces to find the surfaces that are the dirtiest.
  • How Does Color Affect Eyesight? | Education.com – Grades 1-5, Find out which colors are easier and more challenging to read at a distance. This super simple project requires volunteers and color charts you can print from the web.
  • Effects of Ozone on Plants and Health | Julian’s Science Fair – Grades 4-6, Environmental conditions can dramatically impact plant growth and germination. Does increased ozone stunt germination and plant growth? Grow some plants and find out.
  • Making Batteries from Fruits and Vegetables | Sciencebuddies.org – Grades 4-7, Use veggie power to build a simple battery from a variety of vegetables. Which ones are the most powerful?
  • How Many Letters? | ScienceBuddies.org – Grades 1-4, How much memory does a computer use to “remember” a series of letters? Find out how much memory a computer uses to remember 1000 letters.
  • Jumping For Geodes: Can You Tell the Inside from the Outside? | ScienceBuddies.org Grades 1-4, Can you tell what’s inside a geode from looking at the outside? Learn more out these unique rocks and crack some open to discover the surprises inside.
  • How Water Beats Rock | Education.com – Grades 1-5, Discover how water is more potent than rocks.  Experiment with ways that water can break the stone.
  • Soil Type and Liquefaction | All-Science-Fair-Projects.com – Grades 1-5, Experiment with sand, clay, and loam and find out which type of soil dissolves most easily.
  • Effects of Temperature and Humidity on Static Charges | Education.com – Grades 1-5, Use balloons, a rubber ball, and a scarf to investigate why those socks stick together when you take them out of the dryer and how conditions in the air affect static electricity.
  • Dig This: Biodegradation | Education.com – Grades 2-6, How do organic materials become soil? This science experiment measures which materials biodegrade.
  • Geology 101 | Education.com – Grades 2-6, Water carries lots of soil and minerals in a creek. In this project, you’ll examine the behavior of water and gravel in creek beds and the formation of sedimentary rocks.
  • Geothermal Power Plant Model | Energyquest.ca.gov – Grades 3-6, Use a pinwheel and a can of boiling water to simulate geothermal power production. Determine how to generate the most energy from your “power plant.”
  • Egg Substitutes | Sciencebuddies.org – Grades 3-6, Many people avoid eggs because of allergies or diet preferences. But eggs play a vital chemical function in baking and cooking. Evaluate the ability of egg substitutes to mimic their binding, leavening, or thickening properties.
  • How Much Water is Required to Cook Pasta? | Sciencebuddies.org – Grades 3-6, We’re used to cooking our pasta in a big pot of boiling water. Do you actually need that much water, time, and energy to cook pasta? Perform some experiments to find out.
  • Building the Best Bridge | Education.com – Grades 3-6, This project helps students develop an understanding of architecture and engineering through experimentation of which shapes are the most structurally strong.
  • Rubber Bands for Energy | Sciencebuddies.org – Grades 3-6, Put the energy of rubber bands to work and learn about the relationship between potential and kinetic energy.
  • Properties of Pendulums | Illinois Institute of Technology – Grades 3-6, Pendulums have been used for timekeeping for hundreds of years. Find out how changes in mass and length affect the oscillation of a pendulum.
  • Arch Magic: The Unbreakable Egg | Education.com – Grades 4-7, Tell you, folks, tonight is a good night for an egg dinner. Use the eggshells to explore how arches distribute weight. Demonstrates the power of arches by asking students to pile telephone books on top of eggs without damaging them.
  • How a Comet’s Size Affects How Fast It Melts | Sciencebuddies.org – Grades 4-7, Comets are often compared to giant, dirty snowballs, and the comet tail you see in the sky is evidence of melting. In this project, you’ll use figure out how the size of a comet affects its melting rate.
  • Make an Electromagnet | Energyquest.ca.gov -Grades 4-7, Learn how to create an electromagnet from batteries, wire, and a knife switch. How does changing to kind of batteries used affect the power of your
  • Bombs Away! A Ping Pong Catapult | Science Buddies.org – Grades 4-7, They fly through the air with the greatest of ease. Find ways to put a ping pong ball accurately on target time after time.

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Related articles more from author, the edvocate podcast, episode 2: how edtech companies should start the new school year, 23 of the best 9th grade science projects and experiments, 41 of the best 6th grade science projects and experiments.

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The edvocate podcast, episode 5: the archetype of a great teacher, ecology and environmental science apps, tools, and resources for that we love.

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10 Easy Class 4 Science Projects for Exhibitions

  • Class 4 Science Projects
  • By Lab Wale
  • Posted on July 11, 2023

10 Easy Class 4 Science Projects for Exhibitions

Table of Contents

List of 10 Easy Class 4 Science Projects

Homemade lava lamp, grow bacteria in petri dishes, helmet crash test, build a paper bridge, use a peanut’s energy to heat water, oil spill experiment, make your own microscope with water, flashlight creation, earthquake simulation, final words.

School science fairs are a great way to get students interested in science and to showcase their talents. But sometimes, it can be hard to come up with ideas for projects that are both interesting and easy to do. Here are 10 easy class 4 science projects for exhibitions that are sure to be a hit with both students and teachers alike! From exploring the effects of different types of light on plant growth to testing the strength of various materials, these projects are fun, easy, and perfect for any science fair.

There are many easy class 4 science projects that can be used for exhibitions. Most of these science projects focus on the basic concepts of science, such as the properties of matter, the formation of the universe, and the laws of motion. However, there are also a few more unique science projects that can be used to show off your child’s creativity and scientific knowledge. 

  • Oil Spill Experiment 
  • Flashlight Creation 
  • Earthquake Simulation 

A lava lamp is a fun and easy science project that you can make at home with just a few supplies. All you need is: 

  • A clear bottle
  • Some vegetable oil
  • Food coloring, and
  • An Alka-Seltzer tablet.

To make your lava lamp, first add the oil and water to the bottle in a ratio of 1:1. Then add a couple of drops of food coloring to the mixture. Next, drop in an Alka-Seltzer tablet and watch as the mixture reacts and the “lava” starts to flow!

To grow bacteria in petri dishes, you will need:

  • Agar powder
  • Petri dishes
  • Sterile cotton swabs

Begin by sterilizing your work area and all of your supplies. You can do this by wiping everything down with rubbing alcohol . Next, make up a batch of agar according to the directions on the package. 

Pour the agar into the petri dishes, and then place them in a warm spot to solidify. Once the agar has solidified, you can introduce the bacteria to the dish. You can do this by either streaking a sterile cotton swab across an existing culture of bacteria, or by placing a small piece of bacterial growth onto the agar. 

Place the Petra dishes in an incubator set at the appropriate temperature for your bacteria to grow. Check on them daily, and soon you will see colonies of bacteria growing on the agar!

Osmosis is a process that happens naturally in living things. It’s the movement of water through a semipermeable membrane from an area of high water concentration to an area of low water concentration. This process can be easily demonstrated with a few household materials .

To demonstrate osmosis, you will need:

  • A clear plastic cup
  • Two tablespoons of salt
  • Paper towels

Fill the cup with water and stir in the salt until it is dissolved. Wet a paper towel and ring it out so that it is damp but not dripping wet. Place the damp paper towel on one side of the cup and use the marker to make a line on the paper towel where it meets the cup. This will be your control line.

Fill a second cup with fresh water. Wet another paper towel and ring it out like before. Place this paper towel on the other side of the cup and use the marker to make a line where it meets the cup. This will be your experimental line. Check back in an hour to see what has happened!

As part of an easy class science project , students can create a simple crash test for a helmet. The purpose of the crash test is to determine how well the helmet protects the head in a simulated fall.

To conduct the crash test, students will need:

  • A dummy head (which can be created from a balloon and Styrofoam)
  • A helmet and
  • A high place from which to drop the head (such as a second story window).

The head should be dropped from a height of at least 10 feet, and ideally 15-20 feet. Once the head is dropped, students can observe how well the helmet protected the head and make conclusions about whether the helmet did its job. This project can be repeated with different types of helmets (bike, skateboard, ski, etc.) to compare their efficacy.

Building a paper bridge is one of the oldest and most popular science projects for exhibitions. It is a simple project that can be completed in a short period of time, and it is an excellent way to showcase the strength and versatility of paper as a construction material.

Suspension bridges are the simplest type of paper bridge, and they are often used as introductory science projects for young students. For a suspension bridge, you will need: 

  • Two lengths of string or fishing line
  • Two pieces of card stock or construction paper
  • Scissors, and

Once you have your materials assembled, you can start building your bridge. If you are building a suspension bridge, begin by attaching one length of string to each piece of card stock. Next, use tape to attach the two pieces of card stock together at the center point. Finally, use the stapler to attach the two ends of the bridge to the string.

Once your bridge is complete, it is time to test it! Suspension bridges are typically tested by suspending a weight from the center of the bridge and observing how much weight the bridge can hold before breaking. With a little practice, you should be able to build a paper bridge that can support quite a bit of weight!

A peanut contains a lot of energy. You can use this energy to heat water. All you need is: 

  • A container of water
  • A peanut and 

First, light the peanut on fire using the match. Hold the burning peanut over the container of water. The heat from the burning peanut will transfer to the water and cause it to boil. You can use this same method to heat other liquids like milk or soup. Just be careful not to burn yourself!

Oil spills are a big problem in the world. They happen when boats carrying oil spill it into the water. The oil pollutes the water and harms animals. There are many experiments you can do to learn about oil spills. One is to make your own oil spill. You will need:

  • A cup of vegetable oil
  • A drop of dish soap 

Pour the water into the container. Add the vegetable oil and stir gently. Then add the dish soap and watch what happens!

To make this class 4 science project, you will need:

  • A clean, clear jar
  • A magnifying glass

Fill the jar with water. Make sure there are no air bubbles. Place the magnifying glass on top of the jar, and secure it with tape. Hold the microscope up to your eye, and look through the magnifying glass at objects in your environment.

There are many ways to create a flashlight. One way is to use: 

  • Some wires and
  • A light bulb.

First, you will need to gather your materials. For this project, you will need a battery, some wires, and a light bulb. You will also need something to hold the light bulb in place. This can be anything from a paper cup to a piece of cardboard with a hole cut in it. 

Next, you will need to attach the wires to the battery. Make sure that the positive (red) wire is attached to the positive side of the battery, and the negative (black) wire is attached to the negative side of the battery. Once the wires are attached, screw the light bulb into the holder.

Now your flashlight is complete! You can turn it on by flicking the switch on the battery. Remember to turn it off when you’re done so that you don’t waste any power.

If you live in an area that is prone to earthquakes, it is important to be prepared. A good way to do this is to create an earthquake simulation . This can be done with a few simple supplies.

For this experiment, you will need: 

  • A large container
  • A bin, or even a cardboard box. 
  • Sand or soil.

Next, fill the container with sand or soil. The amount will depend on the size of your container. Once the container is filled, add some small rocks or pebbles. These will represent the debris that can be found after an earthquake. 

Now it’s time to create the earthquake! To achieve this, take a large spoon and vigorously stir the sand or soil. Be sure to do this for at least 30 seconds so that the mixture is well mixed. You may also want to add some water to make it more realistic.

After you have created your earthquake mixture, it’s time to simulate the shaking! To achieve this, simply place your container on a flat surface and gently shake it back and forth. You can also use a vibrating object such as an electric toothbrush placed under the container to create the shaking motion.

Once you have finished shaking the container, observe how the rocks and debris have moved around inside. This will give you an idea of what could happen during an actual earthquake.

As the school year comes to an end, it’s time to start thinking about science fair projects. If you’re looking for an easy project that will wow the judges, look no further! Here are three easy class science projects that are sure to impress.

With these 10 easy Class 4 science projects for exhibitions, your child is sure to make a splash at their next school event. These simple but effective science projects are perfect for getting kids interested in science, and they’re bound to impress everyone who sees them.

So get started on one of these fun science projects today and see just how much your child can achieve.

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Science Projects

4-H Science projects allow youth to observe, identify, describe, and experience in a hands-on learning environment with age-appropriate activities designed to help youth learn about life.

science project 4

A world of opportunities awaits you.

4-H Science projects allow youth to observe, identify, describe, and experience in a hands-on learning environment with age-appropriate activities designed to help youth learn about life. Projects include agriculture, aerospace, environmental, and much more!

4-H Aerospace Projects

Youth begin their study of rockets through a variety of hands-on experiences. At the end of the project, participants build and launch their own 2-liter bottle rockets. In the advanced series, youth will build an Estes-type rocket. Build kits and launch with a low power engine and a high-power engine. Learn how to find altitude, fire circuit operation, and learn rocket parts and engine structure. Then, exhibit your rocket and completed project book at Roundup.

Learn about:

  • Engine Structure
  • Electricity

Participant outcomes:

  • This curriculum provides a working knowledge of fundamentals to solve engineering problems and address society’s needs in aerospace and related areas.

Youth interested in aerospace can explore careers like:

  • Aerospace engineering
  • Mechanical engineering
  • Data processing
  • Mission or Payload
  • Aerospace Level 1 Pre-Flight
  • Aerospace Level 2 Lift Off
  • Aerospace Level 3 Reaching New Heights
  • Aerospace Level 4 Pilot in Command

STEM L4 Science Chemistry Image.jpg

4-H Chemistry Projects

Youth will explore scientific methods and deductive reasoning skills, phases of matter, learning about physical properties, reasoning using scientific methods, and thinking critically.  They will explore how different chemical components affect chemical reactions.  They will recognize the different phases of matter.  Encouraging an early interest in Chemistry will help foster potential careers in STEM fields.

  • Deductive reasoning
  • Phases of matter
  • Chemical reactions
  • Critical thinking
  • Physical properties
  • This curriculum provides a working knowledge in the areas of chemistry to include the use of heat, cold, and cutting changes.

Youth interested in chemistry can explore careers like:

  • Quality control
  • Chemistry teacher
  • Science Fun with Kitchen Chemistry

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4-H Agricultural Sciences

These projects explore a variety of topics in production agriculture. From plant propagation to harvest, youth will be immersed in the vast science of horticulture. Youth will also learn about the farm to table food connection, and the importance of agriculture in our daily lives.

Participants learn about:

  • Farming and agriculture production practices.
  • The farm to table connection.
  • Agricultural literacy.
  • An understanding, appreciation, and application of science through a variety of hands-on agriculturally based activities.
  • The vital role agriculture plays in our lives.
  • Plants, plant parts, uses of plants, plant growth and propagation with appropriate activities and experiments.
  • Recording of observations / data collection.
  • Display of activity/experiment results.
  • Youth learn to identify plant vegetative and reproductive structures.
  • Youth learn basic principles, processes, and functions of plant growth and reproduction.
  • Youth learn how to propagate, plant, sustainably grow, manage and harvest a variety of plants.

Youth interested in agricultural sciences can explore careers like:

  • Agricultural Engineering
  • Agricultural Business
  • Biotechnologist
  • Floral designer
  • Greenhouse manager
  • Hydroponics
  • Soil scientist
  • Acres of Adventure
  • Meet the Plants
  • Vegetable Gardening
  • Indoor Gardening
  • Landscape Gardening
  • Strawberries and Brambles
  • Let’s Get Growing
  • See Them Sprout
  • Take Your Pick
  • Growing Profits

Explore more programs and events

  • Engineering Design Challenge
  • STEM School Enrichment

Pennsylvania State 4-H Office

Information for

  • Faculty & Staff
  • Visitors & Public

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Easy Projects Buoyancy, Egg Floatation

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List of Elementary Science Projects (Grades 4 - 6)

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Go Science Girls

Fun Science Ideas for 3-4 Year Olds

Science Activities for 3-4 year olds

My naughty little princess Tisha has just finished her birthday and entered 3. I decided to do a lot of fun activities and make her understand science in an easy way. Yes, they are STEM activities. At the same time, we are trying to add more experiments age wise to all the little ones and add value.

(We have consciously decided to update this page on a regular basis to share our innovative ideas with you). Do not forget to check our site periodically even daily once will help you with creative science projects. Alternatively, subscribe  and you can get our ideas dropped in your mailbox soon after it is updated here.

Fun Science and STEM Activities for 3-4 year olds

Dancing Ghosts : Halloween Balloon Static Electricity Activity

Dancing Ghosts : Halloween Balloon Static Electricity Activity

Static Comb Experiment : Explore Static Electricity for Kids

Static Comb Experiment : Explore Static Electricity for Kids

How to Make Glowing Water : Science Experiment

How to Make Glowing Water : Science Experiment

How to Make Oobleck (A Perfect Non Newtonian Fluid)

How to Make Oobleck (A Perfect Non Newtonian Fluid)

Cool Watermelon Science Experiments for Kids

Cool Watermelon Science Experiments for Kids

Skittles Rainbow : Dissolving Dye Science Project

Skittles Rainbow : Dissolving Dye Science Project

Exploring Veins Patterns in Leaves – Kids Painting Activity

Exploring Veins Patterns in Leaves – Kids Painting Activity

Egg and Toothpaste Experiment (Learn Importance of Brushing Your Teeth)

Egg and Toothpaste Experiment (Learn Importance of Brushing Your Teeth)

How to Make a Square Bubble

How to Make a Square Bubble

Sensory Play with Jelly (Find out Solid or Liquid)

Sensory Play with Jelly (Find out Solid or Liquid)

How to Draw on Water Using Dry Erase Markers (Dancing Drawings)

How to Draw on Water Using Dry Erase Markers (Dancing Drawings)

Walking on Eggs : Measure the Strength of Egg Shell

Walking on Eggs : Measure the Strength of Egg Shell

How Strong is an Egg Shell? Strength of Eggshell Bridge

How Strong is an Egg Shell? Strength of Eggshell Bridge

Rainbow Rubber Egg Science Experiment

Easy Experiments to Introduce Magnetism to Kids

DIY Pully – Physics Fun Experiment for Kids

DIY Pully – Physics Fun Experiment for Kids

Respiration in Plants – Live Proof

Respiration in Plants – Live Proof

Candle Under Glass Experiment

DIY Borax Bouncy Ball -Experiment

DIY Borax Bouncy Ball -Experiment

Glowing Water Beads Experiment for Kids

Glowing Water Beads Experiment for Kids

Easy Volcano Eruption Experiment for Kids (3 Methods & Beautiful Results)

Easy Volcano Eruption Experiment for Kids (3 Methods & Beautiful Results)

Questacon (Australia’s National Science and Technology Centre) – Place to Visit With Kids

Questacon (Australia’s National Science and Technology Centre) – Place to Visit With Kids

Science Behind Making Butter

Science Behind Making Butter

How to Start Fire with a Magnifying Glass?

How to Start Fire with a Magnifying Glass?

Glow in the Dark Ice Cubes – Sensory, Edible Science Activity

Glow in the Dark Ice Cubes – Sensory, Edible Science Activity

Density Science for Kids : Create Fireworks in Water & Oil

Density Science for Kids : Create Fireworks in Water & Oil

STEM Toys for Girls : 2019 Topmost Toys for Curious Girls

Engineering Toys for Girls : 2019 Ultimate List for Little Geniuses

Why Do Flowers Change Color in Food Coloring – Experiment for Kids

Why Do Flowers Change Color in Food Coloring – Experiment for Kids

Spiny Leaf Phasmids : Secret Life of Pets (DIY Enclosure Steps!)

Spiny Leaf Phasmids : Secret Life of Pets (DIY Enclosure Steps!)

DIY Christmas Tree Magnet Maze (Fun Science Game)

DIY Christmas Tree Magnet Maze (Fun Science Game)

Book Review of Ada Twist, Scientist

Wildlife Habitat Port Douglas : Nature Learning for Kids

Wildlife Habitat Port Douglas : Nature Learning for Kids

Safety Glasses – Advantages & Using Guide

Swirling Milk Experiment (Magic Milk Activity)

Swirling Milk Experiment (Magic Milk Activity)

DIY Christmas Tree Bubble Wand {Learn bubble physics}

Catapult STEM Project – DIY Catapult for Kids

Coloring Activity – Girl as a Scientist

Sea Life Sydney Aquarium – Perfect Excursion for Kids

Upcycled Catapult – STEM go green DIY Challenge

Static Electricity Balloon and Salt and Pepper Experiment

Spore Printing with Mushroom – Botany Lesson with Fungi

How to make Curds and Whey

Naked Egg (Dissolving Egg Shell) Experiment

Naked Egg (Dissolving Egg Shell) Experiment

How To Make Balance Scales for Toddlers and Preschoolers

How To Make Balance Scales for Toddlers and Preschoolers

How to Make Heart Shaped Bubble Wand

Easter Egg Bubble Wands

Magnet Maze Game Designing Activity – Learn Science and Art

Magnet Maze Game Designing Activity – Learn Science and Art

Shape Bubble Wands – DIY in Different Shapes

DIY Fridge Door Marble Run Using Magnets

Comparing Different Seeds – An Activity About Nature Science

Delightfully Fizzy Sherbet

Want even more preschooler science activities?

In case you want to get several innovative science concepts for your little ones going to preschool, then you can take a look at these links given below.

  • Alum crystal glows – Take a highlighter, alum, spoon, hot water, black light, and scissors. All are available easily. Be careful when kids use alum. Extract the ink from the highlighter for doing this experiment. Blacklight is mandatory to make the alum glow. For more details Easy science for kids .
  • Dancing Raisins – See how this little one is making raisins dance. He is very clearly explaining the experiment. You can also let kids follow his instruction and make raisins dance. With ingredients available in kitchen countertop make this dance show happen. For more details Youtube dancing raisins .
  • Rhythms of Play got a great idea about Fish using Magnets . You must not miss out to add fun to your little ones.
  • This  colorful celery found in Look We Are Learning is yet a great method to see plants transferring their nutrients and water to other plants.
  • Fruits can be stopped from browning – Lets now teach kids about how to keep fruits from browning. For this experiment, you need fruits and lemon juice. Any of these solutions will help teach kids about preventing fruits from browning. For more details Really are you serious .
  • Childhood101 has given a great explanation about making a miniature of microscope just with things available at home.
  • Fantastic Fun and learning have explained about dissolving lollipop . Check it out.
  • Trio experiment with water – These experiments will help students to understand about water and its properties. Whether all substance dissolve in liquid(water)? How water helps the plant to grow? Why water melts fast? So, all these are about water. Try to involve kids to make them understand better. For more details Kids Academy .
  • Does ice get affected by salt?  Try this activity to explore more. Learn the way water is absorbing watercolor. This is from Learning and Exploring Through Play.
  • Its time to make fun with sounds and here you go with KC Edventures art that has made a musical instrument which will be heard by one person and you can do it yourself
  • Now become an artist by painting just using Epsom salts . Gifted by One Creative Mommy. You can see the glowing faces of kids when they see the crystals upon drying.
  • Drinking Density Experiment – Make some juice to drink. Yes, it is a cocktail and you are just not going to make kids drink but teach density of different liquids from this experiment. Sugar makes the drink denser. Take different juice and add sugar to it and that will decide the density of the juice. See layers of juice in glass through this lesson. For more details Science Bob
  • Here’s a  safe way to explore bubble with apples ! Presented by the Powol Packets.
  • Oxygen from plants – We tell kids not to sleep under a tree during the night because they release CO 2. This lesson will talk about leaves creating oxygen. Apt for a 3rd grade to teach about plants and related to human respiration. For more details Projects jugaad
  • Use modeling clay and playdough to teach moon and its phases just like KC Edventures did.
  •  i-spy bottle can make galaxy so you can teach kids about naming planets. Learn this art by checking Best Toys 4 Toddlers postings.
  • Double gazed drinking – Using plastic bottles, glass, hot water, and thermometer it is now possible to teach kids about heating and temperature. This is a double gazed glass experiment to help understand about heating. For more details Owlcation
  • Get ready for designing sun prints on your own and this is a STEM + Art project called STEAM explained by Creative Family Fun.
  • Making constellations is as simple as that with toothpicks and marshmallows . Have some additional marshmallows due to the reason that it might vanish while constructing. Proudly posted in Munchkins and Moms.
  • Homemade air cushion vehicle – You can now teach kids about hovercraft. Yes, this air cushion vehicle can be made with pop up bottle cap, CD, and a balloon. See how this works. It is fun and a good way to teach kids. For more details Kid spot
  • Balloon Car – Only with a drinking straw, plastic bottle, and balloon your kids can make a car. Here teach about the car and its functioning. To make kids feel glad about making a car on their own follow this instruction. How do wheels rotate and what is required to move the car can be taught in this lesson. For more details Awesome ideas
  • Buggy and Buddy teaches  making rainbow along with prisms lesson
  • Lets now quench the curiosity of kids about frosting and condensing by making them happen at your home. Learn this from Look We Are Learning.
  • Gravity with rubber bands . How is it possible? Yes, it is and you can check this out to see the stretching capacity of rubber bands. Check out Planet Smartypants for more details.
  • One more friction lesson – Friction is an important lesson for kids and you can easily demonstrate that with rice filled in a bottle. Let every kid apply force based on their capacity and learn friction. For more details Carrots are orange
  • Leak-proof bag – If you fill water in a plastic bag with a hole, then will water stay. Obviously, the answer is no. But do you know this experiment will prove it wrong? Let kids fill water in a plastic bag and then make a hole with a pencil to see no water leak. For more details What do we do all day
  • The Chaos and the Clutter are now showing a very quick and easy experiment with ice. How does ice melt faster than ever ? You know what my Tisha found this internet and made me do this at once. But trust me that was all fun.
  • Now comes growing seeds and check NurtureStore to teach kids about growing pea and bean seeds . How they actually germinate. Let kids learn about plant formation from seeds.
  • Rain inside a jar – It can now rain inside the jar. So make it rain and teach the water cycle. Yes, evaporation and condensation can be easily taught using this experiment. For more details, I can teach my child
  • Dry ice and sublimation – Sublimation can be quickly taught with dry ice. The coldest ice creates smoke. But be careful and no let kids touch as it will damage the skin. For more details Tinker lab
  • Potion making is loved by all kids and there is no exception and I swear that it gives immense happiness in exploring the reactions taking place chemically in a fun and playful way. Kids can try themselves is the additional bonus. Powol Packets do not have dearth to Love Potions Projects . Even at Buggy and Buddy, they do potions with extra foam and yes by adding liquids used to wash vessels in the kitchen.
  • Underwater candle – It is possible to make a candle glow under water. It is a simple trick. See this experiment and candle glow and wax holds the water.For more details Youtube Candle Science Experiment
  • Ornaments with salt – Salt is nothing but sodium chloride NaCl. Everyday kids eat this chemical and must learn about the science behind it. Let them make some ornaments with salt and as well understand about the chemical properties. Concept of baking and production of heat is also explained in this experiment. For more details The picky apple
  • I Heart Crafty Things has posted a new idea for future scientist and here – making a butterfly with tissue papers are simple and even the flapping wings are shown using static electricity .
  • Vinegar and baking soda make a wonderful combination and they are just fun to kids due to its fizzing sound. NurtureStore displays the best part made by her girls and these are glittering and fizzing plus looking great with molds that are heart-shaped (can anything else be more attractive for a Valentine party?). Buggy and Buddy showcase the ways in which adding  vinegar that is colorful along with pipettes  creating a bright and nice to look fizz work. Again Powol Packets have their work with innovation and their fizz are sparkling ready to explode .
  • Elephants can now brush teeth – Have ever imagined elephants brushing teeth? It is fun to visualize. With this paste now elephants too can brush their teeth. Breaking down hydrogen peroxide to water and oxygen is the science involved in this. For more details The preschool powol packets
  • Acids and Bases – Use this red cabbage juice to teach kids about acid and base. You can take vinegar for acid and baking soda as a base. Mix them in a glass of cabbage juice to see how acids and bases react. For more details Steve Spangler
  • Again Buggy and Buddy have presented a great activity with salt and oil. Here you can find the  density of water
  • How does milk react with liquids used to wash vessel that contain lemon and food colors? Eager to know this yes you can find it at our place and we named it Swirling Milk . You can also see how Best Toys for Toddlers has named it Milk Marbling . And, another innovative name kept by Messy Little Monsters is  Magic Milk Fireworks . Irrespective of the name this experiment will surely win the heart of the toddlers.
  • Dye on heat – This experiment will explain why dye works. How does it work? Get one coffee mug and markers to allow kids to write their names in a coffee mug. Teach them about heat and baking. For more details a beautiful mess
  • Once again Buggy and Buddy have an experiment for kids that talks about exploring center for rocks which certainly encourage kids to learn about geology.
  • Check out for wild carrots which are the Queen Anne’s Lace and these flowers grow in any place. At Fireflies and Mudpies, all kids become great artist painting them green, yellow and blue . Witness the same coloring activity with  chrysanthemums at the NurtureStore. (You can see them with gerberas  at our site also tried with numerous white colored flowers to demonstrate the color absorbing capacity .
  • At the age of 3 and 4 kids will love the experiment walking water where the demonstration of capillary action and color mixing is really amazing. Here the colored water will move the paper up fighting gravity. Wow! Apple Green Cottage explains this in their site using a paper towel and glass jars . Also, you can see this experiment that uses cold and hot water along with different paper at Royal Baloo .
  • Multicolored Celery – See this little girl carrying out an experiment with celery sticks. She demonstrates how celery color changes. Take two glass with water, one celery stick and dye colors for following this experiment. For more details Youtube celery

Want even EVEN more ideas?

Find more inspiring ideas on our page exclusive for kids aged 1-2 years – feel free to make some small changes and they will become workable to elder kids as well. (My kids repeat the same activities at different age and learn things per their knowledge at that age. Off course there is no dearth to the fun as well.)

Also, you can find activities for kids aged 5-6 years and click on that page. But remember to provide help to your kids as they need support.

Above all check them on the Pinterest board Fun Science for Kids

Let us know which experiment does your 3-4-year-old kids loved to do.

Please provide support to kids and never leave them alone. Ensure to stay with kids and allow them to do only the appropriate activity relevant to age and the skill set they have. Click  here  for more information.

NASA Logo

Sense the Solar Eclipse with NASA’s Eclipse Soundscapes Project

When darkness sweeps across the landscape during a total solar eclipse, unusual things start happening. Fooled by the false dusk, birds stop singing, crickets start chirping, and bees return to their hives.

Reports of these atypical animal behaviors date back centuries, but the effects of an eclipse on plant and animal life are not fully understood. So, on April 8, 2024, the NASA-funded Eclipse Soundscapes Project will collect the sights and sounds of a total solar eclipse with help from interested members of the public to better understand how an eclipse affects different ecosystems.

“Eclipses are often thought of as a visual event – something that you see,” said Kelsey Perrett, Communications Coordinator with the Eclipse Soundscapes Project. “We want to show that eclipses can be studied in a multi-sensory manner, through sound and feeling and other forms of observation.”

A total solar eclipse occurs when the Moon passes directly in front of the Sun, blocking its light from reaching parts of the planet. In areas where the Sun’s light is completely blocked – known as the path of totality – it looks as if dusk has fallen, temperatures drop, and some stars become visible. These changes can trick animals into altering their usual daytime behaviors. A total solar eclipse will pass over the heads of over 30 million people in North America on April 8, 2024, providing the perfect opportunity for a large-scale citizen science project.

The Eclipse Soundscapes Project aims to replicate a similar study conducted by American scientist William M. Wheeler following a 1932 total solar eclipse that passed over the northeast reaches of Canada and the United States. The near-century-old study captured almost 500 observations from the public.

The Eclipse Soundscapes Project hopes modern tools will replicate and expand upon that study to better understand animal and insect behavior. This will be achieved through multisensory observations, such as audio recordings and written accounts of what is seen, heard, or felt during the eclipse. The project, which is particularly interested in learning about cricket behavior, aims to answer questions like do nocturnal and diurnal animals act differently or become more or less vocal during a solar eclipse?

“The more audio data and observations we have, the better we can answer these questions,” Perrett said. “Contributions from participatory scientists will allow us to drill down into specific ecosystems and determine how the eclipse may have impacted each of them.”

A close-up profile of an orange and black grasshopper on a leaf.

The Eclipse Soundscape project invites people to become involved with the study at all levels – from learning about eclipses online, to collecting multisensory observations and audio data, to analyzing the data – and in all locations, whether they’re on the path of totality or not. The project is open to people of all backgrounds and abilities. All project roles have been designed with accessibility in mind to invite people who are blind or have low vision to participate alongside their sighted peers. 

People on or near the path of totality can participate as “Data Collectors” by using an AudioMoth device, a low-cost audio recording device called equipped with a micro-SD card, to capture the sounds of an eclipse. People can also participate as “Observers” by writing down their multisensory observations and submitting them to the project website after the eclipse. Anyone with an internet connection, can participate as an “Apprentice” by learning about eclipses or as a “Data Analyst” to help analyze the audio data after the eclipse. After completing an Eclipse Soundscapes role, a downloadable certificate will be available.

A plastic bag with a green device that looks similar to a floppy disk is attached to a tree branch with a zip tie. There is a label on the bag that says Science Experiment in Progress and instructions not to move the device.

“When it comes down to it, answering our science questions about how eclipses impact life on Earth depends entirely on the data that people volunteer to contribute,” Perrett said. “Our participants, including our project partners and facilitators, allow us to span the entire eclipse path and collect way more data than would be possible for just one small team.”

To learn more about the project and how to become involved, visit: https://eclipsesoundscapes.org/

By  Mara Johnson-Groh

NASA’s Goddard Space Flight Center , Greenbelt, Md.

Related Terms

  • 2024 Solar Eclipse
  • Citizen Science
  • Get Involved
  • Goddard Space Flight Center
  • Heliophysics
  • Heliophysics Division
  • Science & Research
  • Science Mission Directorate
  • Skywatching
  • Solar Eclipses

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Shobhana Gupta is a physician scientist and currently serves as the Open Innovation and Community Applications manager with Earth Science Division’s Applied Sciences Program at NASA Headquarters. Shobhana manages crowdsourcing activities including prize competitions to invite talents and experiences outside of the NASA community for the discovery and development of applications of Earth observations for decision-making. She […]

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Hubble Views a Massive Star Forming

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Spot the King of Planets: Observe Jupiter

Jupiter is easy to observe, and well-documented by astronomers. Learn more about the King of the Planets in February's mid-month article!

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2024 Total Eclipse

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Houston Chronicle

Here's how you can participate in the 2024 total solar eclipse

N orth American observers will witness the next total solar eclipse in less than two months as it crosses over the United States, Mexico and Canada. Rather than just watch the rare phenomenon, onlookers can join in on the fun as a citizen scientist.

According to the National Aeronautics and Space Administration, citizen scientists help make important scientific discoveries. Citizen science projects allow scientists to collaborate with the public, whether it’s discovering and reporting previously unknown comets or searching for solar jets — enigmatic bursts of energy from the sun.

PREPARE FOR LIFTOFF: Houston’s Intuitive Machines moves moon launch to Thursday

Here are four ways to help NASA during the upcoming total solar eclipse:

1. SunSketcher

Citizen scientists can use a cellphone to help measure the exact shape and size of the sun by taking a picture of an eclipse phenomenon called Baily’s Beads. To participate, users must download the SunSketcher app . With mass participation, enough data could create a large database of images enabling scientists to map the sun when analyzed.

“The 2024 eclipse offers an unprecedented opportunity to measure the shape of the sun and so to infer its inner structure,” Gordon Emslie, principal investigator, said on the app’s website. “The SunSketcher project will use smartphone observations by Citizen Scientists situated along the two-thousand-mile-long eclipse path from Texas to Maine to reveal the precise shape of the solar disk.”

2. Eclipse Soundscapes

The Eclipse Soundscapes project offers multiple ways for people to support its scientific mission through roles such as apprentice, observer, data collector, data analyst or facilitator. Although participants can choose multiple positions, officials encourage completing the apprentice role first since it’s free, online and comes with a certificate upon completion of training.

DEEP SPACE CATS: NASA spacecraft sends cat video 19 million miles to Earth in test of new laser communications

3. Eclipse Megamovie

Organizers at Eclipse Megamovie hope to recruit volunteers with a range of skills, experience and knowledge from diverse backgrounds. In addition to scientists, researchers and enthusiasts, they’re looking for software engineers and data scientists with an experience in software engineering and data science, specifically databases, python coding and machine learning. Officials also want to recruit Spanish-speaking volunteers to help with recruitment and communication efforts in Spanish-speaking communities in the path of totality in Texas.

Citizen scientists will photograph images of the solar corona during the total solar eclipse. Once the images get collected, Eclipse Megamovie will use artificial intelligence to support analysis of the images to reveal the plasma transients within the collection of images. Citizen scientists will receive training on how to operate their digital single-lens reflex cameras to make sure they’re capturing significant scientific data.

4. DEB Initiative

Through the Dynamic Eclipse Broadcast Initiative, a network of volunteer citizen scientists in North America will conduct coordinated solar observations leading up the 2024 total solar eclipse. Southern Illinois University Carbondale will lead the collaborative scientific effort where 81 DEB sites will upload images to an image server. Some observations sites will stream live video produced in partnership with SolarSTEAM and NASA Edge during the April 8 total solar eclipse via eclipse.siu.edu .

MONITORING POLLUTION : First images from NASA’s space-based pollution monitor show toxic gas over Houston

Images from cameras and telescope systems plus data from the path of the totality will be collected from volunteer observers from Mexico, across the U.S. and in Canada. The DEB will “provide context observations for all of the 2024 eclipse experiments by showing the evolution of the white light coronal structures and the solar disk during the 90 minutes of totality throughout North America,” according to its website.

A total solar eclipse happens when the moon passes between the sun and earth completely blocking the face of the sun. The last total solar eclipse took place on Aug. 21, 2017. According to the National History Museum, solar eclipses happen anywhere from two to five times a year with total solar eclipses taking place every 18 months or so. A person’s ability to see the eclipse depends on their location in the world at the time of the event.

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Letter from Charles Darwin to John Murray, his publisher, dated 31 March 1859

Contents of Charles Darwin’s entire personal library revealed for first time

300-page catalogue details thousands of books, journals, pamphlets and articles in naturalist’s library

Details of Charles Darwin’s vast personal library, from a paper on epileptic guinea pigs to the Elizabeth Gaskell novel he adored, are being published in their entirety for the first time.

The project has involved nearly two decades of painstaking, detective-like work to track down the thousands of books, journals, pamphlets and articles in the naturalist’s library.

John van Wyhe , the academic who has led the “overwhelming” endeavour, said it showed the extraordinary extent of Darwin’s research into the work of others.

“It also shows how insanely eclectic Darwin was,” Van Wyhe said. “There is this vast sea of things which might be an American or German news clipping about a duck or invasive grasshoppers. That’s been the fun part, not the formal books but the other things … all of which pool together to make the theories and publications we all know.”

The 300-page catalogue published by Darwin Online details 7,400 titles across 13,000 items including journals, pamphlets and reviews.

Some of the books date back to Darwin’s school days such as Oliver Goldsmith’s A history of England (1821), which he won as a prize, or his headmaster’s textbook on ancient geography.

Researchers have at times used auction records to piece together stories.

For example, an auction sales record reveals that Darwin had a copy of an 1826 article by the ornithologist John James Audubon, “Account of the habits of the Turkey Buzzard (Vultura aura), particularly with the view of exploding the opinion generally entertained of its extraordinary power of smelling ”.

In 2019, a copy of Elizabeth Gaskell’s 1880 novel Wives and Daughters appeared at auction. A note in it records: “This book was a great favourite of Charles Darwin’s and the last book to be read aloud to him.”

Previous lists of what was in Darwin’s library only covered around 15% what was actually in it, said van Wyhe.

The new list shows Darwin had volumes on a dizzying array of subjects including biology, geology, philosophy, psychology, religion, farming, art, history and travel.

More than half the works are in English and the rest in languages including German, French, Italian, Spanish, Dutch and Danish.

One of the items is a German periodical containing the first known photograph of bacteria.

Other papers in the library have titles such as “The anatomy of a four-legged chicken”, “Epileptic guinea-pigs” and “The hateful or Colorado grasshopper”.

The project includes a virtual reconstruction of the library, with 9,300 links to copies of works available for free.

No one, his supporters say, has influenced our knowledge of the natural world more than Darwin.

His 1859 masterwork, On the Origin of Species, set down the theory that explains how life on Earth has evolved. It is seen as a book that changed the world, one that mattered then and matters now .

Van Wyhe, a historian of science at the University of Singapore and the director of Darwin Online, said it all showed that Darwin was “not an isolated figure working alone but an expert of his time building on the sophisticated science and studies and other knowledge of thousands of people.

“The size and range of works in the library makes manifest the extraordinary extent of Darwin’s research into the work of others.”

The library publication coincides with what would have been Darwin’s 215th birthday on 12 February.

Reams of material has been written about Darwin but this is the first time his library has been itemised in its entirety.

Van Wyhe said: “Now that we’ve done this I wonder ‘why wasn’t this done many years ago’? Darwin is someone who has been written about more than most historical figures… there are jokes about it, we call it the Darwin industry.”

  • Charles Darwin

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Today’s front page, Friday, February 16, 2024

screenshot 2024 02 16 at 8.12.48 am

Conservation research on 4 mountain ranges in Mindanao support science-based policies

  • Karl Vincent S. Mendez | S&T Media Services
  • February 18, 2024
  • 3 minute read

bio02 021824

In a bid to protect the mountain ecosystems in Mindanao, a group of researchers and scientists from various environmental institutions explored the vast forest areas to document local biodiversity.

The team, led by project leader Victor Amoroso and co-project leader Fulgent Cortico, consisted of individuals from Central Mindanao University, the University of the Philippines Los Baños, Davao Oriental State University, and the National Museum of the Philippines.

The project aims to design conservation measures and recommend science-based policies for the sustainable protection of selected areas.

Four mountain ecosystems were covered in the initiative: Mount Hamiguitan Range, Mount Pantaron Range, Mount Apo Range, and Mount Tago Range.

The research exploration in these mountain areas revealed 2,399 flora and 1,803 fauna species, 601 species of which are endemic to Mindanao and the Philippines.

It also led to the discovery of eight flora and three fauna species, which are mostly endemic to Mindanao.

Following this, Cortico expressed in a presentation the need for the intensive protection and conservation of mountain ecosystems in the country.

“There is a real need for us to protect and conserve these species because once [they] are lost they’re gone forever; not only in Mindanao, not only in the Philippines, but worldwide,” Cortico said.

On the status of flora and fauna species, the project also discovered 296 species that are considered threatened.

Mount Hamiguitan houses the highest number of threatened flora,  (209 species), while, Mount Apo recorded the highest number (74) of threatened fauna species.

Cortico explained that various human activities are currently threatening the security of these highly significant ecosystems.

Such threats include conversion of forest land to agricultural land, expansion of human settlements and infrastructure, mining activities, illegal logging, over-exploitation of resources, and the prevalence of invasive forest species.

It should be noted that among the four selected areas, Mount Pantaron and Mount Tago are not yet legally classified as protected areas. Without the classification, these ecosystems are a lot more vulnerable to exploitation from various human activities.

Following the conservation initiative, the group of Cortico has determined that the value of the four mountain ecosystems could be the basis for support and policy interventions.

Among the major accomplishments of the project was the classification of Mount. Pantaron as a local conservation area (LCA) for the province of Bukidnon. This policy from the Bukidnon local government unit shall add another layer of protection for the mountain’s biodiversity.

Another LCA policy is in the pipeline. The project’s effort in mapping and delineation of Mount Malimumu is paving the way for its LCA classification.

Twenty researchers of the project were deputized as wildlife enforcement officers by the Department of Environment and Natural Resources and are now regularly monitoring Mount Pantaron.

Efforts to develop local ecotourism were also initiated. The project started capacity-building seminars to add value to the current knowledge and practice of local communities.

Trail signages were also erected to help inform tourists and to promote the local biodiversity.

The project also helped establish a nursery of economically important plants, including the endangered and endemic species that can be used for assisted natural regeneration of forest areas.

Additionally, the nursery also contributes as an additional source of livelihood for the community.The research project, “Conserving Mindanao Mountain Ecosystems: Biodiversity as Frontier For Ecotourism Development & Sustainable Ecological Protection,’’ placed 2nd runner-up under the Research Category at the National Symposium on Agriculture, Aquatic, and Natural Resource Research and Development (NSAARRD) 2023.

Led by the Philippine Council for Agriculture, Aquatic and Natural Resource Research and Development of the Department of Science Technology, NSAARRD showcases the most outstanding contributions of individuals and institutions in AANR R&D.

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  1. Fourth Grade Science Projects

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