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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 that exciting science project your child will be sure to love.

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This science fair project idea investigates how magnetism can defy the force of gravity.
Third Grade
Elementary School
Have you ever wondered how many numbers most people can memorize? Test your friends to find out!
Third Grade
Psychology and Sociology
This science fair project idea  investigates how the shape of an object affects drag.
Third Grade
Elementary School
This science fair project idea investigates if webbed feet help a duck (and others) swim.
Third Grade
Elementary School
This project tests the hypothesis that dark colors absorb more heat than light colors.
Third Grade
Elementary School
This science fair project idea determines if the size of the parachute will change the rate at which an object falls.
Third Grade
Elementary School
This science fair project idea investigates which objects float and sink in honey, water, and oil.
Third Grade
Elementary School
This science fair project idea investigates the difference in reaction times between boys and girls.
Third Grade
Elementary School
Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.
Third Grade
Easy
The purpose of this science fair project is to investigate how dark and light colors absorb heat differently.
Third Grade
Elementary School
Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.
Third Grade
Easy
This science fair project idea compares biodiversity between drops of water.
Third Grade
Elementary School
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
Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.
Third Grade
Elementary School

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