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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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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 sound physics and do a survey experiment to explore the difference between sound and noise in this science project.
Third Grade
Psychology and Sociology
This biodiversity project examines the biodiversity in your own backyard.
Third Grade
Medium
This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.
Third Grade
Elementary School
In this physics project, learn about the relationship between light intensity and distance  using a laser pointer, flashlight, and graph paper!
Third Grade
Physics
Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.
Third Grade
Easy
Third Grade
Elementary School
Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.
Third Grade
First Grade
In this experiment you will replicate the mummification process by making a hot dog mummy.
Third Grade
First Grade
This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.
Third Grade
Elementary School

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