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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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Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.
Third Grade
Easy
How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.
Third Grade
Anatomy
This experiment evaluates how a diet that is rich in 'mood-enhancing' foods affects the way people feel over several weeks.
Ninth Grade
High School
Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!
Ninth Grade
Physics
In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.
Ninth Grade
Seventh Grade
This science fair project will help students learn about non-vascular plants, such as mosses.
Third Grade
Second Grade

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