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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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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
Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.
Chemistry
First Grade
Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.
Physics
Electricity and Magnetism
In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.
Physics
Sixth Grade
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
Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.
Chemistry
Seventh Grade
Are there really specific taste areas of the tongue for sweet, salty, bitter, sour, and umami? Find out for yourself in this cool science project.
Food
Fourth Grade

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