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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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Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.
Science Fair Project Ideas
Fifth Grade
In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.
Science Fair Project Ideas
Second Grade
In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.
Science Fair Project Ideas
Fourth Grade
What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.
Science Fair Project Ideas
Fourth Grade
Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.
Science Fair Project Ideas
Fifth Grade
Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.
Science Fair Project Ideas
Fourth Grade
Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.
Science Fair Project Ideas
Fourth Grade
In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!
Science Fair Project Ideas
Fifth Grade
The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.
Science Fair Project Ideas
Fourth Grade
Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.
Science Fair Project Ideas
Fourth Grade
Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.
Science Fair Project Ideas
Fourth Grade
In this CD hovercraft science project, students will construct their own DIY hovercraft.
Science Fair Project Ideas
Fourth Grade

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