Education.com
Try
Brainzy
Try
Plus

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 1 to 15 of 404
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
Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.
Fourth Grade
Botany
Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.
Fourth Grade
Easy
This science fair project teaches students the differences between fruits and vegetables.
Fourth Grade
Elementary School
In this science fair project, students make their own rain gauge to measure rainfall.
Fourth Grade
Weather and Climate
In this experiment, the weight of aluminum cans will be compared.
Fourth Grade
Elementary School
This science fair project idea determines which method of hand cleansing is the most effective.
First Grade
Fourth Grade
This science fair project idea is develops new or improved paper making techniques and encourages recycling.
Fourth Grade
Elementary School
This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.
Fourth Grade
Elementary School
The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.
Fourth Grade
Easy

Share these projects with friends

clear all

Filter by

Subject
Recommended Learning Products
Trust Education.com to find smart things kids love
Unlimited Workbooks and Worksheets
90% of Students Understand Concepts Better Since Using PLUS
Reading and Math Program for Kids 3-7
300+ games and activities. Try it for free!
Make Math Practice Fun and Engaging
Interactive Math Lessons for Elementary School Students