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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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This experiment investigates whether font choice affects peoplesâ ability to remember the information that they read.
Behavioral/Health Science
Middle School
Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.
Life Science
Ninth Grade
This experiment evaluates how a diet that is rich in 'mood-enhancing' foods affects the way people feel over several weeks.
Behavioral/Health Science
High School
In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.
Life Science
Health and Medicine
This project examines whether people's taste perception is influenced by what they see.
Psychology and Sociology
Elementary School
Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.
Health and Medicine
Fifth Grade
How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.
Microbiology
Sixth Grade
The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.
Behavioral/Health Science
Psychology and Sociology
The objective of this experiment is to evaluate which types of people are most impacted by the McCollough effect.
Behavioral/Health Science
Middle School

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