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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 fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.
High School
Middle School
This science fair project idea examines readersâ expectations in regard to literature.
High School
Medium
This science fair project idea discovers new ways to use recycled materials and encourages new architectural design ideas.
High School
Medium
Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.
High School
Hard
In this science fair project, you will experimentally determine the relationship between pressure and depth in a static liquid.
High School
Middle School
Science fair project that builds a magnetometer and demonstrate its uses.
High School
Middle School
Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework
High School
Psychology and Sociology
Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.
High School
Ninth Grade
This science fair project idea helps develop new and improved earthquake detection methods and techniques.
High School
Ecology
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
Middle School
In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.
High School
Middle School
This science fair project idea designs a unique, eco-friendly living space and  encourages advances in green architecture.
High School
Hard
Research currently available fuel sources, and fuel manufacturing and processing techniques. Propose an alternative fuel source.
High School
Medium

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