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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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Find out whether packaged seeds actually do expire in this new science fair project idea.
Fourth Grade
Fifth Grade
Place mushroom caps on poster board, label samples. Check beneath mushroom caps for 'prints' of spores. Record and interpret prints left behind.
Middle School
Medium
This free science fair project idea teaches you all about the earthworm! Use Education.com for science fair project ideas.
Middle School
High School
In this fun science fair project, you will learn all about leaves, including their petiole (stalk), veins, blades, and more!
Middle School
Easy
It's easy to do science in the kitchen with these fantastic food experiments for kids. Little gastronomers will observe the enzymatic activity of pineapple, quantify the amount of grease in potato chips, and discover effective ways to inhibit (or encourage!) mold growth on bread with this series of fun and enriching science fair projects. Bon Appétit!
Science Fair Project Ideas
Chemistry
This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.
Sixth Grade
Hard
Science fair project that determines whether algae can be made to grow by feeding it supplementary carbon dioxide.
Sixth Grade
Seventh Grade

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