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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 16 to 30 of 171
This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.
Elementary School
Fifth Grade
In this science fair project, students evaluate the alleged pain-relieving properties of amber.
Middle School
Seventh Grade
This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.
Elementary School
Fifth Grade
In this science fair project, students investigate how different colors influence appetite.
Eighth Grade
Psychology and Sociology
This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.
High School
Ninth Grade
Learn about our cognitive capacity of attention and to learn about factors that influence attention.
Middle School
Psychology and Sociology
This science fair project idea studies an optical illusion and explores whether a person is using their left or right brain hemisphere.
Elementary School
Fifth Grade
Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.
Middle School
High School
Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.
Fifth Grade
Sixth Grade

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