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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 whether carpet placed on a lawn will kill grass and weeds. Choose an area of lawn that you would like to remove, record grass that is dead or dying.
High School
Middle School
This science fair project idea determines whether the older population prefers darker, duller colors rather than bright and lush colors.
High School
Middle School
This science fair project idea is develops a modern interior lighthouse design and encourages lighthouse preservation and restoration.
High School
Hard
This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.
High School
Middle School
This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.
High School
Middle School
This science fair project discovers the properties and uses of sand and develops new or improved methods, techniques, or products involving sand.
High School
Ecology
This science fair project idea examines if there is a reason that musical notes are at the pitches they are.
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
This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.
High School
Elementary School
This science fair project idea explores what common compounds can be easily separated out in a centrifuge.
High School
Middle School
This science fair project idea determines an average personĂ¢s ability to use their anaerobic power system over a period of 2 weeks.
High School
Middle School

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