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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, all you need is a tennis ball and stopwatch to model the use of sonar to determine ocean depths.
High School
Oceans
In this science fair project, learn how to model the hydrologic cycle, the continuous interchange of water between the oceans, land, plants, and clouds.
High School
Earth & Space Science
Observe how acidity affects saltwater. Fill fish tanks with saltwater. Put the CO2 injectors inside and monitor condition of fish
Oceans
Environmental Issues
This science fair project challenges students to research and interact with the animals and plants that live in tide pools and test a practical use of tidepools
High School
Oceans
The purpose of this project is to examine the sun's highest altitude in the sky during the day to determine if it is exactly halfway between sunrise and sunset.
High School
Earth & Space Science
Is temperature a requirement for solar energy uses? This project tests this theory and examines the amount of usable sunlight for solar-energy applications.
High School
Weather and Climate
This experiment will explore the possibility of a connection between lunar cycles and how humans are affected.
High School
Earth & Space Science

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