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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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In this science fair project, you will test the effectiveness of calcium propionate, a food preservative that inhibits mold growth in bread.
High School
Middle School
Choose a timeline to live without technology. Keep a journal of all the issues encountered. What are the benefits and cons of modern technology?
High School
Middle School
In this science fair experiment about recycling, demonstrate how the wax from a candle can be reused to make another candle.
High School
Middle School
Science fair project that determines whether spreading a moss soup over an area increases moss growth.
High School
Middle School
This free science fair project idea teaches you all about the earthworm! Use Education.com for science fair project ideas.
High School
Middle School
This science fair project idea determines whether the older population prefers darker, duller colors rather than bright and lush colors.
High School
Middle School
In this experiment we use Scotch Guard to make sand that resists water.
High School
Middle School

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