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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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This science fair project idea determines the most effective method of preserving food.
Fourth Grade
Elementary School
In this experiment, the weight of aluminum cans will be compared.
Fourth Grade
Elementary School
Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.
Fourth Grade
Elementary School
It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.
Fourth Grade
Environmental Issues
Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!
Fourth Grade
Zoology
Are there really specific taste areas of the tongue for sweet, salty, bitter, sour, and umami? Find out for yourself in this cool science project.
Fourth Grade
Easy
This science fair project will help students learn about non-vascular plants, such as mosses.
Fourth Grade
Second Grade
In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.
Fourth Grade
Easy
Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!
Fourth Grade
Zoology
This science experiment tests if dog saliva can really help heal wounds.
Fourth Grade
Elementary School

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