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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 428
This experiment evaluates how much influence an enticing package has on childrensâ willingness to try a new snack.
Behavioral/Health Science
High School
It has long been believed that weather influences mood and behavior. This experiment will evaluate if weather can really impact the way people feel.
Behavioral/Health Science
Middle School
Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.
Psychology and Sociology
Eighth Grade
Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.
Aerodynamics
Fourth Grade
How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.
Health and Medicine
Third Grade
In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.
Psychology and Sociology
Middle School
How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.
Psychology and Sociology
Seventh Grade
In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.
Health and Medicine
Middle School
Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.
Food
Sixth Grade
We're all familiar with the idea that some songs âget stuck in your head.â This experiment explores the validity of that claim.
Behavioral/Health Science
High School
This experiment evaluates if personality affects the type of movies that people prefer.
Behavioral/Health Science
High School
Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.
Food
Third Grade
This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.
Behavioral/Health Science
Elementary School

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