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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  investigates how the shape of an object affects drag.
Third Grade
Elementary School
This science fair project idea investigates if webbed feet help a duck (and others) swim.
Third Grade
Elementary School
Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?
Third Grade
Physics
This science fair project idea determines if the size of the parachute will change the rate at which an object falls.
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
This science fair project idea investigates which objects float and sink in honey, water, and oil.
Third Grade
Elementary School
This science fair project idea investigates the difference in reaction times between boys and girls.
Third Grade
Elementary School
This science fair project idea compares biodiversity between drops of water.
Third Grade
Elementary School
In this project, different brands of microwave popcorn are tested and compared.
Third Grade
Chemistry
The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.
Third Grade
Aerodynamics
In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.
Third Grade
Earth & Space Science
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
This science fair project idea teaches to understand and explore the concepts of crystal formation and dissolving substances.
Third Grade
Elementary School
Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.
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

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