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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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Test marble and limestone to determine if acid rain is harmful enough to damage buildings and stone monuments.
Fourth Grade
Fifth Grade
Demonstrate how tracks are formed by pressing your hand into a cornmeal mixture, then reverse the process and make prints of the track.
Middle School
Medium
This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.
Elementary School
Middle School
Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.
Fourth Grade
Medium
Looking for a way to keep your kid busy during the long, hot days of summer? These science projects will spark your young learner's curiosity going into the new school year. What's more, conducting an experiment or two is a great way to take your mind off the sweltering temperatures!
Elementary School
Physical Science
In this science fair project, students use the streak test to tell minerals apart from each other.
Elementary School
Second Grade
In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.
Kindergarten
Elementary School
Check out this cool science fair project on identifying rocks and minerals for kids.
Sixth Grade
Earth & Space Science
In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.
Fourth Grade
Earth & Space Science
This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.
Elementary School
Earth & Space Science

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