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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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In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.
Second Grade
Food
This project explores whether plants can live and grow when 'watered' with juice, soda, or milk.
First Grade
Second Grade
Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.
Second Grade
Engineering
Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.
First Grade
Chemistry
Kids often ask, 'how tall am I?' This science fair project seeks to determine how well kids can guess their own heights.
First Grade
Easy
Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.
Second Grade
Geology
This science fair project idea determines which method of hand cleansing is the most effective.
First Grade
Second Grade

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