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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 determine the freezing and boiling points of water and the effect of salt and other solutes on these temperatures.
High School
Middle School
Select a study area that has a variety of plant life and learn about its ecosystem in this science fair project.
High School
Middle School
In this free science fair project idea, test a friend on how long it takes them to trace the mirror image of an object.
High School
Middle School
The goal of this science fair project is to attempt to build a perpetual motion machine and analyze the Laws of Thermodynamics.
High School
Middle School
The objective of this experiment is to college and evaluate the nocturnal insect population in your area and evaluate your sample for health hazards.
High School
Middle School
Learn how healthy potted tomato plants can mature and bear fruit in a hydroponic environment! Use Education.com for free science fair project ideas.
High School
Middle School
Learn how to test for the production of carbon dioxide by respiration in plants with this science fair project.
High School
Middle School
Learn about plant growth with this science fair project using a pinto bean plant! Use Education.com for science fair project ideas.
High School
Middle School
In this science fair project, you will demonstrate the effect of luminosity and distance on the apparent magnitude of a star.
High School
Middle School
In this science fair project idea learn to model how an artificial satellite is launched into orbit.
High School
Middle School
This science fair project idea outlines the practical applications of particular origami folding techniques.
High School
Applied Mathematics

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