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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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In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.
Chemistry
Third Grade
In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.
Applied Science
Applied Mathematics
Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.
Engineering
Physics
Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.
Chemistry
Seventh Grade
Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.
Physics
Fourth Grade
How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.
Applied Mathematics
Computers
For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.
Electricity and Magnetism
Second Grade

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