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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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This science project examines the thermal properties of several major greenhouse gases.
High School
Earth & Space Science
Monitor the impact learning how to play chess has an academic performance. Divide subjects into two groups compare GPA
High School
Medium
This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.
High School
Eighth Grade
Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.
High School
Middle School
In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.
High School
Middle School
This science fair project explores different types of endangered frogs, and why some are endangered while others are not.
Ninth Grade
Hard
This science fair project examines whether ocean water can be made safe to drink.
High School
Middle School

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