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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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Be like Ben (Franklin, that is) and discover electricity in your own backyard. Or kitchen, or bedroom, or school science lab...
Fifth Grade
Science Fair Project Ideas
This science fair project idea focuses on two classes of sugars monosaccharides (fructose) and disaccharides (sucrose or table sugar).
Middle School
Physical Science
The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.
Elementary School
Third Grade
This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.
Fifth Grade
Easy
Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.
Seventh Grade
Eighth 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
Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.
Sixth Grade
Seventh Grade
Dissect a pinto bean and learn how to identify all of its parts in this science fair project!
Middle School
High School
The objective of this experiment is to find out if cooked beans grow faster, if at all, than uncooked beans.
Middle School
Botany
Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.
Second Grade
Third Grade

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