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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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This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.
Which Food Will Mold the Fastest?
Third Grade
Elementary School
How do Plants Absorb Water?
Third Grade
Elementary School
This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.
How to Stop Soda From Exploding
Third Grade
Elementary School
In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.
How Do Weather Conditions Affect How Fast a Puddle Evaporates?
Third Grade
Kindergarten
The objective of this science fair project is to explore which factors influence the height of a ball bounce.
Bouncing Ball Physics
Third Grade
Elementary School
The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.
What Makes the Best Compost Pile?
Third Grade
Elementary School
Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.
Magic Glass of Water
Third Grade
Easy
Is Horse Manure a Possible Energy Source in a Crisis?
Third Grade
Elementary School
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
Elementary School
How Does a Compass Work?
Third Grade
Elementary School
This science fair project challenges students to study how camouflage and environment are related in squirrel populations.
Squirrels and Their Surroundings: The Relationship Between Camouflage and Habitat
Third Grade
Elementary School
This science fair project idea determines which method of hand cleansing is the most effective.
Effective Hand Washing
Third Grade
Elementary School
Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.
Forensic Entomology and the Life Cycle of the Blowfly
Third Grade
First Grade
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
The purpose of this science fair project is to determine how the sun's direction affects temperature.
How Does the Sun's Direction Affect Temperature?
Third Grade
Elementary School

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