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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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This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.
Sixth Grade
Elementary School
In this science fair project, students create their own miniature salt flats at home.
Sixth Grade
Fourth Grade
It has long been believed that weather influences mood and behavior. This experiment will evaluate if weather can really impact the way people feel.
Sixth Grade
Middle School
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
In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.
Sixth Grade
Easy

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