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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 science fair projects, students will grow out the bacteria that collect on air conditioner filters.
Third Grade
Fourth Grade
Quench your thirst with great tasting lemonade while you explore the concepts of acid and base, and how these differ from sweet and sour.
Elementary School
Middle School
Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.
Fourth Grade
Easy
This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.
Fourth Grade
Electricity and Magnetism
Be like Ben (Franklin, that is) and discover electricity in your own backyard. Or kitchen, or bedroom, or school science lab...
Fifth Grade
Science Fair Project Ideas
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
Test your friends to find out if you can replicate the placebo effect's incredible results.
Second Grade
Anatomy
This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.
Second Grade
Third Grade
This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!
Third Grade
Easy
Use pepper and soap to discover some fun facts about the properties of water.
Second Grade
Chemistry

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