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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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This science fair project idea examines which type of insulation holds in the most heat.
Third Grade
Elementary School
Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.
Third Grade
Elementary School
In this project students experiment with making music using only glasses of water.
Third Grade
Elementary School
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.
First Grade
Physics
This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?
Third Grade
Elementary School
This science experiment has students test whether a snail moves faster on concrete or dirt.
Third Grade
Elementary School
In this project, waves of vibrations are experimented with using water in glasses.
Third Grade
Elementary School
This science fair project teaches students about wilting and browning of salad greens.
Third Grade
Kindergarten
This science fair project idea determines what household items are good conductors of electricity.
Third Grade
Fourth Grade
This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.
Third Grade
Elementary School
In this project, different brands of microwave popcorn are tested and compared.
Third Grade
Chemistry
The objective of this science fair project is to explore the relationship between acidic and basic compounds.
Third Grade
Chemistry
In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.
Third Grade
Kindergarten

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