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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 project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?
Third Grade
Microbiology
Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.
Third Grade
Botany
This science experiment has students test whether a snail moves faster on concrete or dirt.
Third Grade
Zoology
In this science fair project you will make a model of a cell membrane using very simple material.
Third Grade
Life Science
This science fair project teaches students about wilting and browning of salad greens.
Third Grade
Botany
In this project, sunlight is blocked from a leaf in order to see the affect that sunlight has on leaves.
Third Grade
Botany
Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.
Third Grade
Life Science
Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.
Third Grade
Life Science
This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.
Third Grade
Botany
This science fair project idea explores whether talking to a plant will help it grow.
Third Grade
Botany
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
Zoology
Make a backbone model to explore human anatomy and life science.
Third Grade
Life Science
This science fair project idea demonstrates that plants give off water.
Third Grade
Botany
This science fair project idea compares biodiversity between drops of water.
Third Grade
Life Science

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