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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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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
This project examines the impact of low water on a radish seedling root system. How is growth affected?
Elementary School
Fourth Grade
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
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Third Grade
Chemistry
This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.
Elementary School
Third Grade
This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.
Elementary School
Fifth Grade
Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.
Fourth Grade
Physics
This science fair project idea teaches kids the different functions of a leaf.
Elementary School
Botany
Use pepper and soap to discover some fun facts about the properties of water.
Second Grade
Chemistry
This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.
Kindergarten
First Grade
This science fair project idea builds models of various types of bridges and then  determines which bridge design is the strongest.
Fifth Grade
Hard
In this fun experiment, we'll find out how color affects heat absorption!
Fifth Grade
Weather and Climate

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