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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 how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.
Science Fair Project Ideas
Eighth Grade
Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.
Science Fair Project Ideas
Seventh Grade
Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.
Science Fair Project Ideas
Fifth Grade
Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?
Science Fair Project Ideas
Ninth Grade
Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.
Science Fair Project Ideas
Fourth Grade
The purpose of this science fair project is to build a basic radio.
Science Fair Project Ideas
Elementary School
Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.
Science Fair Project Ideas
Third Grade
The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.
Science Fair Project Ideas
Middle School
This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.
Science Fair Project Ideas
Fourth Grade
Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.
Science Fair Project Ideas
Middle School
Looking for a way to liven up a hot summer day? A little hands-on science is the perfect way to keep your kid occupied. So why not recruit your budding scientist and conduct an experiment or two?
Science Fair Project Ideas
Elementary School
This science fair project uses paper chromatography to  investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.
Science Fair Project Ideas
Elementary School
Be like Ben (Franklin, that is) and discover electricity in your own backyard. Or kitchen, or bedroom, or school science lab...
Science Fair Project Ideas
Fifth Grade

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