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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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Showing 1 to 15 of 43
In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.
Third Grade
Chemistry
Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.
Third Grade
Chemistry
In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!
Third Grade
Chemistry
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
This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.
Third Grade
Chemistry
How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.
Third Grade
Chemistry
This science fair project idea explores substances that cause a bubble to last longer.
Third Grade
Chemistry
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Third Grade
Chemistry
This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.
Third Grade
Chemistry

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