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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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Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.
Zoology
Third Grade
Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.
Botany
Third Grade
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
Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.
Anatomy
Health and Medicine
Little ones looking to get their hands dirty will love this series of fun plant experiments for kids that teach essential plant biology concepts such as photosynthesis, transpiration, capillary action, and tropisms in fun and hands-on ways. Little green thumbs get to do everything from literally cloning cabbage (which is actually quite easy to do, and very cool) to building their own working greenhouses. Check it out!
Botany
Science Fair Project Ideas
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
This project explores whether plants can live and grow when 'watered' with juice, soda, or milk.
Life Science
Botany
This science experiment tests if dog saliva can really help heal wounds.
Microbiology
Health and Medicine

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