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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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Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.
High School
Ninth Grade
Examine how a battery can be made from everyday materials.
High School
Middle School
Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.
High School
Middle School
We're all familiar with the idea that some songs âget stuck in your head.â This experiment explores the validity of that claim.
High School
Ninth Grade
Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?
Ninth Grade
Geology

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