Science Fair Project Ideas 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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In this experiment you will evaluate whether praise improves athletic performance.
Middle School
Sixth Grade
In this experiment two environments will be compared: a room with interior design that uses correct Feng Shui versus one with incorrect Feng Shui.
High School
Ninth Grade
In this experiment, students create music with subliminal messaging to try to influence people's decision-making.
High School
Ninth 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
This experiment investigates whether the primacy effect is observed more frequently in specific populations of people.
High School
Ninth Grade

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