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3rd Grade Science Fair Projects

For their 3rd grade science projects, kids begin investigating the answers to their questions much like actual scientists would. Instead of simply collecting qualitative data (describing what they observe), 3rd graders graduate to collecting and presenting quantitative data by measuring their results with increased accuracy, communicating their findings in simple charts and graphs, and describing their observations in written prose. Education.com's collection of 3rd grade science fair projects give kids the opportunity to apply their newly acquired skills to thinking critically about the world around them while having serious fun in the process. Browse our collection of third grade science projects and experiments by using the boxes to the left to filter by topic and find an exciting science project your child will be sure to love.

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This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.
Third Grade
Microbiology
In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.
Third Grade
Microbiology
Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.
Third Grade
Microbiology
The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.
Third Grade
Microbiology
This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?
Third Grade
Microbiology
While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!
Third Grade
Microbiology

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