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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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Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.
High School
Medium
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
This science fair project aims to examine the nature of pi and analyze other properties and values related to circles, such as radius, diameter
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
Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.
High School
Hard
Determine which seeds are most likely to survive harsh winter conditions (low temperatures).
High School
Middle School
Determine whether fresh vegetables have more calories or less calories than canned vegetables.
High School
Medium
Determine whether the application of Febreeze will lower the bacterial count.
High School
Life Science
Identify vitamin C in fruit juices and to determine which of the following juices contain the most vitamin C
High School
Middle School
This science fair project idea teaches what wildlife rehabilitators do and about the process of wildlife rehabilitation.
High School
Zoology
This experiment will explore whether adding different substances to a gel affects its strength.
High School
Chemistry
Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.
High School
Hard
Devise an argument for or against the possibility of resurrectin extinct species through DNA manipulation. Analyze data, report findings.
High School
Medium
The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.
Eleventh Grade
Astronomy

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