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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 if family members can recognize one another using only the sense of smell.
Anatomy
Elementary School
4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.
Zoology
Fourth Grade
Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.
Electricity and Magnetism
Sixth Grade
This science fair project examines how seeds hitchhike on animals and clothing.
Botany
Elementary School
Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.
Botany
Kindergarten
Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.
Life Science
Ninth Grade
This science experiment tests if dog saliva can really help heal wounds.
Microbiology
Elementary School
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
Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.
Electricity and Magnetism
Fifth Grade
Learn how different types of soil affect how animal tracks form in this experiment!
Zoology
Kindergarten

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