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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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Purpose of science fair project: does pre-washing lettuce with a vinegar and water solution remove more bacteria than washing with only water?
Microbiology
Elementary School
Garlic has a distinctive smell health benefits. The purpose of this science fair project is to determine whether garlic inhibits the growth of bacteria.
Microbiology
Middle School
In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.
Anatomy
Fourth Grade
This project studies how density maximizes the growth of juvenile limulus polyphemus (Horseshoe Crabs)
Zoology
Middle School
Weather and Climate
Elementary School
Botany
Elementary School

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