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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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Science fair project that determines the effect of concentrated mental effort on physical performance levels.
High School
Psychology and Sociology
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
Study blind spots, run experiments in blind spot detection, design an original blind spot experiment, test your design on volunteers
High School
Medium
In this science fair project, you will study and model the texture of different igneous rocks.
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
Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.
Ninth Grade
Tenth Grade
Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.
High School
Middle School
In this science fair project, learn how to model the hydrologic cycle, the continuous interchange of water between the oceans, land, plants, and clouds.
High School
Middle School
This science fair project determines which type of physical activity most improves memory.
High School
Middle School
This science fair project idea examines  whether music has an effect on a person's ability to complete a simple task that requires concentration.
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
Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.
High School
Medium
In this science fair project, you will test for the presence of carbon dioxide when an acid and carbonate compound react.
High School
Middle School
Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.
High School
Hard
Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.
High School
Hard

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