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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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The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!
Physics
Seventh Grade
High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.
Physics
Electricity and Magnetism
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 experiment tests if dog saliva can really help heal wounds.
Health and Medicine
Elementary School
This science fair project idea determines if family members can recognize one another using only the sense of smell.
Forensic Science
Elementary School
Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.
Electricity and Magnetism
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
In this project, you'll create Oersted's experiment, which relates to how electric currents create magnetic fields.
Physics
Middle School
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!
Chemistry
Science Fair Project Ideas

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