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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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How does frost form?  How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.
Third Grade
Easy
In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!
Third Grade
Chemistry
This science fair project idea determines which method of hand cleansing is the most effective.
Third Grade
Elementary School
This science fair project examines how seeds hitchhike on animals and clothing.
Third Grade
Elementary School
Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.
Third Grade
Chemistry
Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.
Third Grade
Ecology
In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.
Third Grade
Botany

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