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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 explore which factors influence the height of a ball bounce.
Bouncing Ball Physics
Elementary School
Physics
In this science fair project, students make their own rain gauge to measure rainfall.
DIY Rain Gauge
Weather and Climate
Fourth Grade
Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.
Rainbow in a Jar
Physics
Weather and Climate
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 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
Elementary School
Physics
Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.
Snow to Liquid Ratio
Weather and Climate
Second Grade
In this science fair project, students will construct their own hovercraft.
DIY Hovercraft
Physics
Fourth Grade
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?
Elementary School
Physics
In this science fair project, students test how objects float and sink in liquids of different densities.
Layers Upon Layers: Testing How Objects Interact with Liquids
Elementary School
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?
Elementary School
Physics
In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.
Fastest Way to Cool a Soda
Physics
Fourth Grade
How Does a Compass Work?
Elementary School
Physics
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?
Elementary School
Physics
In this physics project children will use heat to change the air pressure inside a bottle causing a balloon set on top of the bottle to squeeze into it.
Air Pressure Experiment
Physics
Kindergarten
The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.
Balancing Act: How does Gravity Affect Balance?
Elementary School
Physics

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