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Science Fair Project Ideas

Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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Showing 1 to 15 of 307
Do people only 'hear' what they want to hear? Explore pareidolia and psychoacoustics  with this easy science fair project that pits melody against white noise.
Psychology and Sociology
Eighth Grade
This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.
Engineering
Elementary School
This project investigates whether chewing gum can help a majority of people with focus and concentration.
Psychology and Sociology
High School
This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.
Psychology and Sociology
Fourth Grade
In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.
Engineering
Sixth Grade
Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.
Engineering
Second Grade
Is the birthday paradox really a paradox, or just an intriguing problem that defies intuition? Find out with this birthday paradox science fair project.
Applied Science
High School
In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.
Engineering
Fifth Grade
Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.
Engineering
Sixth Grade
How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.
Applied Mathematics
Fifth Grade
This science fair project idea determines whether volunteers remember more information presented orally or visually or kinesthetically.
Psychology and Sociology
Middle School

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