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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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How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.
Science Fair Project Ideas
Ninth Grade
Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.
Science Fair Project Ideas
Ninth Grade
Is your kid crazy about science? Check out this selection of advanced science projects that revolve around the sun.
Science Fair Project Ideas
High School
Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.
Science Fair Project Ideas
Second Grade
Collect meteorite dust with a magnet in your very own backyard!  The objective of this science fair project is to gather meteorite dust to study outer space.
Science Fair Project Ideas
Elementary School
Can you fool your eyes and your brain with an optical illusion?  The purpose of this science fair project is to demonstrate various kinds of optical illusions.
Science Fair Project Ideas
Kindergarten
What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.
Science Fair Project Ideas
Second Grade
What does yeast eat? Sugar, of course. But yeast also has some powerful enemies in the form of antifungal agents! Kids test them out in this fun yeast lab.
Science Fair Project Ideas
Eighth Grade
The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.
Science Fair Project Ideas
High School
Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.
Science Fair Project Ideas
Eighth Grade
Kids learn about the color rendering index by finding the best lightning for makeup in this fun and original physics science fair project idea.
Science Fair Project Ideas
Sixth Grade
How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.
Science Fair Project Ideas
Twelfth Grade
The goal of this science fair project is to determine which cheese grows mold the fastest: Vermont Cheddar, American, Brie, or Camembert?
Science Fair Project Ideas
Middle School

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