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Third Grade Science Fair Project Ideas

Great selection of third grade science fair project ideas. These science fair projects can help you find third grade level ideas for your science fair.

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Third Grade “human-anatomy”
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The purpose of this science fair project is to investigate how the caffeine in soda drinks impacts the human heart rate.
Caffeine and Heart Rate
Third Grade
Kindergarten
Science fair project that constructs a model of a backbone to better understand human anatomy.
Constructing A Backbone
Third Grade
Easy
What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.
What Causes Dilated Pupils?
Third Grade
Anatomy

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