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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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Showing 1 to 15 of 1,137
This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.
Engineering
Physics
Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!
Physics
Ninth Grade
Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.
Electricity and Magnetism
Fifth Grade
Analytical chemists perform chromatography to separate colors into pigments. Test the food coloring used in M&M's and Skittles candy in this fun project!
Chemistry
Sixth Grade
In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!
Chemistry
Elementary School
In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!
Physics
Engineering
In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.
Engineering
Physics
By dropping a magnet through a copper tube, kids observe the cool (and bizarre) braking effect produced by the eddy currents predicted by Lenz's law.
Physics
Electricity and Magnetism
Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!
Physics
Fourth Grade
Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.
Chemistry
Middle School

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