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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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What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.
Fifth Grade
Hard
Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.
Kindergarten
Food
This experiment will explore if a randomly iterated algorithm will result in a pattern.
High School
Physics
This science fair project explores different types of endangered frogs, and why some are endangered while others are not.
Ninth Grade
Hard
Science fair project that determines which types of clouds are best at blocking harmful UV radiation.
Sixth Grade
Seventh Grade
Science fair project that creates fog using bottles of hot and cold water.
Middle School
Easy
Science fair project idea helps conceptualize probability. Compare probabilities and outcomes of cards drawn from a standard playing deck.
Middle School
Easy
Spring is here, do you want to learn how to make a kite?  In this free science fair project, a step by step guide teaches you how to make great flying kite.
Middle School
Easy
Explore this fun science fair project idea to investigate different microclimates in and around your home and their effects on the plant and animal life.
High School
Easy

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