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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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Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!
Astronomy
Ninth Grade
This experiment examines if space objects become round after reaching a certain mass.
High School
Astronomy
In this cool robotics project, construct a motorized robot with a sensor and put it through a maze test to find the number of errors it makes along the way.
Engineering
Ninth Grade
This experiment will explore how manipulating a graph of historical information might reveal new information about data.
High School
Astronomy
Science fair project that determines whether algae can be made to grow by feeding it supplementary carbon dioxide.
Engineering
Sixth Grade
Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.
High School
Engineering
In this free science fair project idea, you will learn how to build a 3-D model of Earth.
High School
Astronomy
Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.
High School
Engineering

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