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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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Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!
Third Grade
Astronomy
In this experiment, the weight of aluminum cans will be compared.
Third Grade
Elementary School
Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.
Third Grade
Easy
How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.
Third Grade
Anatomy
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 make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.
Third Grade
Medium
Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.
Third Grade
Easy
This science fair project teaches students the differences between fruits and vegetables.
Third Grade
Elementary School
This project examines whether people's taste perception is influenced by what they see.
Third Grade
Elementary School
Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.
Third Grade
Easy

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