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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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In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.
Ninth Grade
Psychology and Sociology
In this free science fair project idea, test a friend on how long it takes them to trace the mirror image of an object.
Middle School
High School
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.
Eighth Grade
Psychology and Sociology
This science fair project idea explores whether cats can be trained in the same way that dogs can.
Elementary School
Fifth Grade
This science fair project idea studies past and current fads and trends.
Middle School
Medium
Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.
High School
Medium
This science fair project idea studies how how do readers predict what events will happen next while reading a story.
High School
Medium
How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.
Seventh Grade
Psychology and Sociology

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