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Elementary School Science Fair Project Ideas

Education.com's elementary school science fair projects expose kids to a broad range of opportunities for scientific inquiry, arming them with the tools and knowledge they need to answer their questions about the world around them. Elementary school science experiments are a great way to demonstrate important concepts in physics and chemistry, while our elementary school science fair project ideas equip kids with carefully explained procedures that yield enlightening results.

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In this fun experiment, we'll find out how color affects heat absorption!
Fifth Grade
Weather and Climate
Could there be toxic chemicals lurking in the cupboards and closets of your home?
Fourth Grade
Health and Medicine
This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.
Kindergarten
First Grade
This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.
Elementary School
Kindergarten
This science fair project uses paper chromatography to  investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.
Elementary School
Fourth Grade
In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.
Elementary School
First Grade
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.
Third Grade
Anatomy

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