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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 472
Since water has weight, it exerts pressure. In this science fair project, you will learn to determine a way to measure water pressure.
Middle School
Easy
How do fossils formed? In this free science fair project, learn how to build models of fossils and explore the process of fossilization.
Middle School
Easy
In this free science fair project idea, we learn about rock layering and how the geological process of horizontal layering occurs.
Middle School
Earth & Space Science
Little ones looking to get their hands dirty will love this series of fun plant experiments for kids that teach essential plant biology concepts such as photosynthesis, transpiration, capillary action, and tropisms in fun and hands-on ways. Little green thumbs get to do everything from literally cloning cabbage (which is actually quite easy to do, and very cool) to building their own working greenhouses. Check it out!
Science Fair Project Ideas
Chemistry
Get a cool science fair project idea on various climatic seasons and find out the reasons why summer has the hottest and longest days.
Elementary School
Weather and Climate
A great science fair project on solar oven design that helps kids learn about solar power and solar heating.
Seventh Grade
Eighth Grade
In this free science fair project idea, we learn about star 'movement' and how we can calculate the distance of stars from the earth using a parallax.
Middle School
Earth & Space Science
Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.
Elementary School
Third Grade
This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.
Elementary School
Medium
In this science project, you will demonstrate the greenhouse effect and you will discover how materials of the Earth's surface affect the greenhouse effect.
Middle School
High School
In this science fair project, you will make a model of what scientists in the past thought the universe looked like that is geocentric (Earth-centered).
Middle School
Easy

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