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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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Showing 17 to 31 of 31
In this project, a magnet is used to collect iron from breakfast cereals.
Elementary School
Fifth Grade
When the lungs are filled, they hold varying volumes of air depending on the size of person. In this project, learn how to measure your lung's air capacity.
Middle School
Easy
With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.
First Grade
Easy
This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.
Second Grade
Third Grade
Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.
Middle School
High School
In this project, different childproof containers are tested to see how childproof they really are.
Elementary School
Fifth Grade
In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.
Third Grade
Earth & Space Science
Evaluate whether kidsâ toy preferences are hardwired or develop as they grow.
Middle School
Psychology and Sociology

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