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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 181 to 195 of 219
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
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
This project investigates the affect of storage temperature on microwave popcorn.
Third Grade
Elementary School
Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.
Third Grade
Easy
This science fair project idea determines what household items are good conductors of electricity.
Third Grade
Fourth Grade
This science experiment tests whether warm or cold water works best in making cut flowers last longer.
Third Grade
Elementary School
Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.
Third Grade
Second Grade
The goal of this evaporation experiment is to learn about how different external conditions affect drying time.
Third Grade
Second Grade
This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?
Third Grade
Easy
Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?
Third Grade
Fourth Grade
Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?
Third Grade
Fourth Grade

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