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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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Showing 1 to 14 of 14
This science fair project teaches students the differences between fruits and vegetables.
Third Grade
Elementary School
Third Grade
Elementary School
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 science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.
Third Grade
Elementary School
This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?
Third Grade
Elementary School
This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.
Third Grade
Elementary School
How do organic materials become soil? This science experiment measures what materials biodegrade.
Third Grade
Elementary School
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
Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.
Third Grade
Elementary School
Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.
Third Grade
Elementary School
The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.
Third Grade
Elementary School
This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.
Third Grade
Elementary School

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