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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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In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.
Third Grade
Elementary School
This project investigates the affect of storage temperature on microwave popcorn.
Third Grade
Elementary School
This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.
Third Grade
Elementary School
Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.
Third Grade
Elementary School
The project investigates how friction affects motion by using different surface textures.
Third Grade
Elementary School
This science fair project idea determines what household items are good conductors of electricity.
Third Grade
Fourth Grade
This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?
Third Grade
Elementary School
Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.
Third Grade
Kindergarten
How do organic materials become soil? This science experiment measures what materials biodegrade.
Third Grade
Elementary School
This science experiment tests whether warm or cold water works best in making cut flowers last longer.
Third Grade
Elementary School
How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.
Third Grade
Easy
This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?
Third Grade
Easy
There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.
Third Grade
Elementary School
In this project, a basketball containing different psi is dropped to see how well it bounces.
Third Grade
Kindergarten

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