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Second Grade Science Fair Project Ideas

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

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In this science fair project, you'll make a 'ghost' appear in a test tube, and learn about what happens when hot water and cold water interact.
The Ghost in the Tube
Second Grade
Elementary School
This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.
Where Did the Lady Bug Get Her Spots?
Second Grade
Elementary School
This science fair project teaches students the differences between fruits and vegetables.
Is it a Fruit or a Veggie?
Second Grade
Elementary School
How do Plants Absorb Water?
Second Grade
Elementary School
This science fair project idea investigates how magnetism can defy the force of gravity.
Defying Gravity
Second Grade
Elementary School
This science fair project will help students learn about non-vascular plants, such as mosses.
Water and Mosses
Second Grade
Third Grade
Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.
Why Doesn't the Ocean Freeze?
Second Grade
Chemistry
Attraction? Detraction? The goal of this science fair project is to explore how magnetic fields differ.
How Do Magnetic Fields Differ?
Second Grade
Elementary School
This science fair project idea determines which method of hand cleansing is the most effective.
Effective Hand Washing
Second Grade
Elementary School
In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.
How Well Does Sound Travel Through a Gas? A Liquid? A Solid?
Second Grade
Kindergarten
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
Second Grade
First Grade
This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.
Mapping the Energy Use of My Classroom
Second 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?
Second Grade
Elementary School
This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.
The Speed of Sound on a String
Second Grade
Kindergarten
In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.
What Attracts Fruit Flies?
Second Grade
Ecology

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