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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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Determine which seeds are most likely to survive harsh winter conditions (low temperatures).
High School
Middle School
This science fair project idea discovers the average number on the Scoville scale that humans can endure in hot peppers before physical signs kick in.
High School
Middle School
Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.
High School
Middle School
This science fair project idea sheds some 'light' on which color of candles burn the longest.
High School
Chemistry
introduction to organic chemistry. study what happens when polymer molecules are mixed with borax solution.
Ninth Grade
Chemistry
This science fair project idea investigates whether body language and heart rate can decipher who's lying and who's not.
High School
Middle School
Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.
Seventh Grade
Eighth Grade
This science project challenges students to take learned information about weather and  climate control and apply it to larger issues like global warming.
High School
Hard
Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.
High School
Medium
This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.
High School
Ninth Grade

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