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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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Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.
Life Science
Ninth Grade
Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.
Botany
Fourth Grade
In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.
Zoology
Anatomy
Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!
Microbiology
Life Science
In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.
Botany
Third Grade
Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.
Zoology
Eighth Grade
What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.
Anatomy
Third Grade
In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.
Zoology
Kindergarten

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