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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 91 to 105 of 110
The purpose of this science fair project is to determine whether it takes more force to move an object over a smooth surface or a rough surface.
Science Fair Project Ideas
Elementary School
The purpose of this science fair project is to determine which household products are acids or bases.
Science Fair Project Ideas
Elementary School
Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.
Science Fair Project Ideas
Elementary School
How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.
Science Fair Project Ideas
Elementary School
Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.
Science Fair Project Ideas
Elementary School
The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.
Science Fair Project Ideas
Elementary School
Purpose of science fair project: does pre-washing lettuce with a vinegar and water solution remove more bacteria than washing with only water?
Science Fair Project Ideas
Elementary School
The objective of this science fair project is to determine whether electric power can be generated from fruits to power a light bulb and a buzzer.
Science Fair Project Ideas
High School
The purpose of this science fair project is to determine whether a mordant causes natural dye be brighter or longer lasting.
Science Fair Project Ideas
Elementary School
Garlic has a distinctive smell health benefits. The purpose of this science fair project is to determine whether garlic inhibits the growth of bacteria.
Science Fair Project Ideas
Middle School
What is the Doppler Effect, or the Doppler Shift?  The purpose of this science fair project is to determine how distance impacts the Doppler Effect.
Science Fair Project Ideas
High School
The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.
Science Fair Project Ideas
High School
The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.
Science Fair Project Ideas
High School

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