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 91 to 105 of 107
This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.
Elementary School
Fifth Grade
Raise fish in different sized aquariums for 8 weeks. Document growth rate. Determine optimal volume for fish growth.
Middle School
Medium
Check out this cool science fair project idea to explore the relation between onions and eyes and how to  prevent eyes from tearing while cutting an onion.
Middle School
Easy
In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.
Elementary School
Second Grade
Fun middle school science fair project idea on testing different methods of chromatography, color separation and measuring the flow rate of color pigments.
Middle School
Chemistry
Science fair project which attempts to create a hybrid fish species by breeding two different species of fish together.
Fifth Grade
Sixth Grade
Test marble and limestone to determine if acid rain is harmful enough to damage buildings and stone monuments.
Fourth Grade
Fifth Grade
Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.
Fourth Grade
Fifth Grade
This science experiment tests whether warm or cold water works best in making cut flowers last longer.
Elementary School
Second Grade
In this free science fair project idea, test a friend on how long it takes them to trace the mirror image of an object.
Middle School
High School

Share these projects with friends

clear all

Filter by

Subject