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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
Middle School
Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.
High School
Medium
Research currently available fuel sources, and fuel manufacturing and processing techniques. Propose an alternative fuel source.
High School
Medium
This science fair project idea designs a unique, eco-friendly living space and  encourages advances in green architecture.
High School
Hard
This experiment determines the distribution of darts around a bulls eye to simulate the probability of an electron's location in its own cloud of electrons.
High School
Middle School
This science fair project idea increases the space efficiency of living areas and  encourages economic improvements via new real estate ideas.
High School
Hard
Do you hate to waste energy? In this experiment you will design a mechanical device that is powered bythe process known as energy transformation.
High School
Hard
Research Earthship buildings. Draft a unique architectural design that repurposes used, discarded radial tires. Build scale model of structure.
High School
Hard
Detail the chemical properties, nutritional value, medicinal effects of garlic, Write a detailed report, prepare recipes.
High School
Middle School
Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.
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
Research and understand basic computer science. Build a simple computer, following instructions found online. Design a new or improved feature.
High School
Medium
In this science fair project, you will demonstrate three types of stress that cause rock deformation- compression, tension, and shear.
High School
Middle School

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