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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
Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.
Science Fair Project Ideas
Middle School
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
Looking for a way to liven up a hot summer day? A little hands-on science is the perfect way to keep your kid occupied. So why not recruit your budding scientist and conduct an experiment or two?
Science Fair Project Ideas
Elementary School
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
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
This project examines the vulnerability of fruit flies, Drosophila melanigaster, to irradiation. Will exposure result in mutations?
Science Fair Project Ideas
High School
The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.
Science Fair Project Ideas
Middle School
Vitamin C boosts your immune system and your health.  The purpose of this science fair project is to determine which fruit juices have the most Vitamin C.
Science Fair Project Ideas
Elementary School
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
This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.
Science Fair Project Ideas
Tenth Grade
Generate gas from garbage. The purpose of this science fair project is to simulate how landfills generate gases that can be used to create energy.
Science Fair Project Ideas
Middle School
The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.
Science Fair Project Ideas
Elementary School

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