Education.com
Try
Brainzy
Try
Plus
Black Friday sale on now! Save 50% on PLUS and Brainzy with coupon BLACKFRI. Learn More

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.

Sort by:
Showing 46 to 60 of 597
In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.
Engineering
Sixth Grade
Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.
Engineering
Second Grade
Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.
Engineering
Eighth Grade
In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.
Engineering
Fifth Grade
How does frost form?  How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.
Weather and Climate
Third Grade
What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!
Ecology
Oceans
In this science fair project, students use the streak test to tell minerals apart from each other.
Earth & Space Science
Geology
Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.
Weather and Climate
Second Grade
In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!
Astronomy
Third Grade
This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.
Ecology
Environmental Issues
This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.
Ecology
Elementary School

Share these projects with friends