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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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Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.
First Grade
Easy
In this science fair project, students make their own rain gauge to measure rainfall.
Fourth Grade
Weather and Climate
This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.
Fourth Grade
Elementary School
This science fair project examines how seeds hitchhike on animals and clothing.
Fourth Grade
Elementary School
In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.
Fourth Grade
Geology
Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!
Fourth Grade
Botany
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.
Fourth Grade
Zoology
In this experiment, the weight of aluminum cans will be compared.
Fourth Grade
Elementary School

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