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Science Fair Project Ideas

Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

High Frequency Hearing Test

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Attracting Beneficial Insects to Your Garden

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.

How to Find Maximum Height of a Projectile

Do goldfish have a higher respiration rate than humans? Does size affect how fast you breathe? Find out in this fun science project!

Goldfish vs. Human Respiration Rate

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Crystal Fudge

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

Break a Ruler Using Newspaper and Atmospheric Pressure

This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.

Kepler's 3rd Law: Orbital Period vs. Distance

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

Leaf Chromatography

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Renewable Energy Project for Kids: Power from Water

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

How to Make a Simple Electric Motor

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

Hot Tubs and High Blood Pressure

Little ones looking to get their hands dirty will love this series of fun plant experiments for kids that teach essential plant biology concepts such as photosynthesis, transpiration, capillary action, and tropisms in fun and hands-on ways. Little green thumbs get to do everything from literally cloning cabbage (which is actually quite easy to do, and very cool) to building their own working greenhouses. Check it out!

10 Plant Experiments for Kids

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

How Long Will Your Trash Bag Live?

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Measuring Raindrops

In this CD hovercraft science project, students will construct their own DIY hovercraft.

DIY Hovercraft

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

How to Make Lightning

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Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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