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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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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
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
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
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Third Grade
Chemistry
Set off an a science adventure as you prepare a row of bee homes for your new visitors.
Third Grade
Zoology
What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.
Third Grade
Anatomy
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
This science fair project idea explores whether white light can be separated into different colors.
Third Grade
Elementary School
This science fair project idea investigates how magnetism can defy the force of gravity.
Third Grade
Elementary School
Discover flight initiation distance as you play around in the park with this fun bird watching project!
Third Grade
Zoology

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