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High School Science Fair Projects

Need a science fair project that's fun, engaging, and appropriately rigorous for a high school science fair? Education.com has assembled a rich collection of high school science fair projects and high school science fair project ideas written by our team of professional scientists, science teachers, and educational consultants. We offer free high school science experiments on every science fair topic, including physics, chemistry, biology, engineering, and even psychology. Check the boxes in the sidebar to filter your results, or use the search bar to find a winning idea for your upcoming science fair. Hundreds of good science fair projects are only a click away.

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Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.
Life Science
Ninth Grade
Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?
Life Science
Seventh Grade
This high school science fair project investigates if small changes in your diet alter the pH of your saliva.
High School
Life Science
This science fair project explores whether musicians are better than non-musicians at distinguishing and understanding speech in noisy environments
High School
Life Science

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