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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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Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.
Third Grade
Second Grade
This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.
Third Grade
Elementary School
This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.
Third Grade
Elementary School
This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.
Third Grade
Elementary School
The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.
Third Grade
Elementary School
This science fair project idea explores whether talking to a plant will help it grow.
Third Grade
Elementary School
This science fair project idea examines the reason boats are shaped and engineered.
Third Grade
Elementary School
The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.
Third Grade
Elementary School
In this project students experiment with making music using only glasses of water.
Third Grade
Elementary School
Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.
Third Grade
Elementary School
Make a backbone model to explore human anatomy and life science.
Third Grade
Easy
Discover whether cold or hot water from the faucet will boil faster on the stove.
Third Grade
Elementary School
The purpose of this science fair project is to determine how rocks and soils vary in porosity, the part of the rock that is not solid material.
Third Grade
Elementary School

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