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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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This project examines whether people's taste perception is influenced by what they see.
Taste Perception
Third Grade
Psychology and Sociology
The goal of this science fair project is to investigate how distance affects the strength of the magnet. All you need is graph paper, a compass, and a magnet.
How Does Distance Affect the Strength of a Magnet?
Third Grade
Physics
The purpose of this science fair project is to determine the strength of a magnet based on the distance it moves a magnetic toy car.
Can a Toy Car Reveal the Strength of a Magnet?
Third Grade
Physics
Attraction? Detraction? The goal of this science fair project is to explore how magnetic fields differ.
How Do Magnetic Fields Differ?
Third Grade
Physics
How Does a Compass Work?
Third Grade
Physics
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
Physics
The objective of this science fair project is to explore which factors influence the height of a ball bounce.
Bouncing Ball Physics
Third Grade
Physics
Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!
Does Hot Water Freeze Faster Than Cold Water?
Third Grade
Physics
Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.
Is there a Relationship between Tempo and Genre?
Third Grade
Psychology and Sociology
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
Physics
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
Get out your flashlight! The purpose of this science fair project is to investigate how distance influences the spreading of light.
How Does Distance Affect the Spreading of Light?
Third Grade
Physics
Do Temperature and Humidity Affect How Long Static Charges Last?
Third Grade
Physics
Have you ever wondered how many numbers most people can memorize? Test your friends to find out!
Memorizing Numbers
Third Grade
Psychology and Sociology
This science fair project idea determines if the size of the parachute will change the rate at which an object falls.
Parachutes
Third Grade
Physics

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