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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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This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.
Physical Science
Third Grade
This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.
Electricity and Magnetism
Fourth Grade
Find out whether optical mice are useful on all surfaces or if there are drawbacks to this supposedly superior solution to the traditional roller-ball mouse.
Physical Science
Fifth Grade
This science fair project idea explores substances that cause a bubble to last longer.
Chemistry
Third Grade
Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.
Elementary School
Physical Science
Use pepper and soap to discover some fun facts about the properties of water.
Chemistry
Second Grade
Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.
Elementary School
Physical Science
Looking for a way to keep your kid busy during the long, hot days of summer? These science projects will spark your young learner's curiosity going into the new school year. What's more, conducting an experiment or two is a great way to take your mind off the sweltering temperatures!
Elementary School
Physical Science
How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.
Chemistry
Third Grade
This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!
Physics
Third Grade
This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.
Physical Science
Physics
This science fair project idea produces varying pitches of sound.
Elementary School
Physical Science
Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.
Physics
Third Grade

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