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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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Study the effect of music on blood pressure. Compare blood pressure readings before and after the listening session. Analyze results, write a detailed report.
High School
Hard
Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.
High School
Hard
This science fair project determines which type of physical activity most improves memory.
High School
Middle School
Research active ingredients in anti-aging creams. Test skin creams on volunteers, document the effectiveness of the creams with before an after photographs.
High School
Hard
Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.
Ninth Grade
Tenth Grade
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
Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.
High School
Hard
In this science fair project, you will learn the differences between coarse-, medium-, and fine-textured soils.
High School
Middle School
Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers
High School
Medium
This science fair project idea examines if there is a reason that musical notes are at the pitches they are.
High School
Middle School
Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.
High School
Medium
This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.
High School
Middle School
In this science fair project, you will study and model the texture of different igneous rocks.
High School
Middle School
Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.
High School
Middle School
Create groups of volunteers based on frequency of playing video games. Compare driving records. Analyze data, interpret findings.
High School
Middle School

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