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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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Showing 31 to 45 of 572
Measure the densities of various fruits and vegetables to determine if there is a relationship between density and nutritional value.
Life Science
Ninth Grade
What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.
Weather and Climate
Fourth Grade
In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.
Botany
Fourth Grade
Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!
Microbiology
Life Science
Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.
Zoology
Eighth 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
Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.
Zoology
Fourth Grade
How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.
Microbiology
Sixth Grade
Little ones looking to get their hands dirty will love this series of fun plant experiments for kids that teach essential plant biology concepts such as photosynthesis, transpiration, capillary action, and tropisms in fun and hands-on ways. Little green thumbs get to do everything from literally cloning cabbage (which is actually quite easy to do, and very cool) to building their own working greenhouses. Check it out!
Botany
Science Fair Project Ideas

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