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Third Grade Science Fair Project Ideas

Great selection of third grade science fair project ideas. These science fair projects can help you find third grade level ideas for your science fair.

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In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.
How Important Are Cats' Whiskers?
Third Grade
Elementary School
In this project children practice the scientific method while playing with puffy paint.
Practicing the Scientific Method with Puffy Paint
Third Grade
Kindergarten
It's a trick, it's magic -- no, it's the amazing, gravity-defying capillary action!
Capillary Action: Say No to Gravity
Third Grade
Physics
This science fair project idea explores substances that cause a bubble to last longer.
Soap Bubbles
Third Grade
Fourth Grade
In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.
When Seeds Explode
Third Grade
Elementary School
Enter the buzz worthy world of bee watching and find out what time bees like to wake up!
Bee Watcher: What's Buzzing?
Third Grade
Zoology
Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.
Mental Mix Up: Experimenting with Your Ability to Focus
Third Grade
Fourth Grade
Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!
Under What Conditions Do Potatoes Sprout The Fastest
Third Grade
Fourth Grade
Cleaning can be a chore, but not with this sudsy experiment!
Homemade Cleaners: Getting Squeaky Clean
Third Grade
Chemistry
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Water Salinity
Third Grade
Chemistry
Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.
Latent Fingerprints
Third Grade
First Grade
Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!
Spider Science: Exploring the World of Webs
Third Grade
Zoology
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.
Does Length Have an Effect on Speed?
Third Grade
Elementary School
This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!
Floating Balloons
Third Grade
Easy
How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.
Melting Ice Experiment
Third Grade
Easy

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