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Elementary School Physical Science - Science Fair Project Ideas

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

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The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.
Color and Heat Absorption
Elementary School
Physical Science
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?
Elementary School
Physics
What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.
What is Condensation?
Physics
Fifth Grade
This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.
Homemade Lava Lamp
Elementary School
Chemistry
Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?
Sizing Up Marshmallows
Elementary School
Physical Science
This science fair project idea compares the mass and density of objects.
Examining Mass And Density Of Popped And Unpopped Popcorn
Elementary School
Physical Science
How Does a Compass Work?
Elementary School
Physics
This science fair project idea determines how much sugar is in each type of drink.
Which has the most sugar: Fruit Juice, Fresh Squeezed Fruit Juice, Organic Fruit Juice, or Soda?
Elementary School
Chemistry
In this science fair project, students will construct their own hovercraft.
DIY Hovercraft
Physics
Fourth Grade
This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.
Bridge Project
Elementary School
Physics
The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.
How Does Sound Travel?
Elementary School
Physics
This science fair project idea investigates the concept that the color of an object is based on the color of light that it reflects.
Light Absorption
Physical Science
Fourth Grade
Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.
Corrosiveness of Soda
Chemistry
First Grade
The purpose of this science fair project is to build a basic radio.
Radio Waves, It's In The Air: Build A Basic Radio
Elementary School
Electricity and Magnetism
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
Physical Science
Third Grade

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