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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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Showing 61 to 75 of 110
Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.
Science Fair Project Ideas
Elementary School
Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.
Science Fair Project Ideas
Elementary School
This free science fair project explores the 'dirty' relationship between the presence of organic material in soil and water absorbency.
Science Fair Project Ideas
Middle School
Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.
Science Fair Project Ideas
Elementary School
This cool electricity project teaches kids how connecting batteries in series vs. parallel circuits can contribute to different levels of voltage and amperage.
Science Fair Project Ideas
Eighth Grade
Can a horse lead itself to the carrot?  Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.
Science Fair Project Ideas
Second Grade
How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.
Science Fair Project Ideas
Third Grade
The purpose of this science fair project is to prove that mealworms exposed to an electromagnetic field will develop more quickly.
Science Fair Project Ideas
Middle School
Purposely grow mold on cheese!  The hypothesis of this science fair project is that cheese will grow mold faster in a dark place with a warm temperature.
Science Fair Project Ideas
Elementary School
What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.
Science Fair Project Ideas
Second Grade
The purpose of this science fair project is to investigate how various odors affect cricket behavior.
Science Fair Project Ideas
Kindergarten
Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.
Science Fair Project Ideas
Kindergarten
The purpose of this science fair project is to investigate whether crickets prefer the light or the dark.
Science Fair Project Ideas
Kindergarten
The purpose of this science fair project is to determine how accurate and precise dart players are.
Science Fair Project Ideas
Elementary School

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