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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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Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.
Third Grade
Physics
How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.
Third Grade
Easy
In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.
Third Grade
Elementary School
This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.
Third Grade
Second Grade
This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!
Third Grade
Easy
In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.
Third Grade
Elementary School
Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?
Third Grade
Second Grade
What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.
Third Grade
Fourth Grade
This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.
Third Grade
Elementary School
In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.
Third Grade
Elementary School
In this experiment you will replicate the mummification process by making a hot dog mummy.
Third Grade
First Grade

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