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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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Science fair project that determines whether algae can be made to grow by feeding it supplementary carbon dioxide.
Sixth Grade
Seventh Grade
Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.
Third Grade
Fourth Grade
This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.
Elementary School
Fourth Grade
Free science fair project idea examining how different types of water affect plant germination and growth.
Middle School
Earth & Space Science
Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.
Elementary School
Third Grade
The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.
Ninth Grade
Medium
Science fair project that measures the number of Calories in algae obtained from different environments to compare the amount of oil present in each sample.
Sixth Grade
Seventh Grade
Science fair project that examines whether different types of algae produce the same amount of oil by comparing the surface beading of water droplets.
Sixth Grade
Seventh Grade
Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.
Eighth Grade
Ninth Grade
In this experiment we use Scotch Guard to make sand that resists water.
Middle School
Seventh Grade

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