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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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How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!
Laundry Science: Ready, Get Set, Dry!
Physical Science
Fourth Grade
Be a chemist for a day and study the simple reaction between sugar and heat.
Heating Sugar: A Sweet Science
Chemistry
Second Grade
How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.
Melting Ice Experiment
Chemistry
Third Grade
Take a dive into the candy jar with this yummy science experiment.
Candy pH
Chemistry
Fourth Grade
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Water Salinity
Chemistry
Third Grade
With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!
Candy Science: A Halloween Experiment
Physical Science
First Grade
What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.
Cooling Food: Microwave vs. Oven
Physics
Fourth Grade
This science fair project idea produces varying pitches of sound.
Changing the Pitch of Sound
Elementary School
Physical Science
The project idea is to understand how sugar effects brain chemistry.
How Does Sugar Effect Focus And Brain Functionality?
Elementary School
Chemistry
Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.
Chemical Energy in a Bottle
Elementary School
Physical Science
This science fair project idea explores substances that cause a bubble to last longer.
Soap Bubbles
Chemistry
Third Grade
This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.
Whatever Floats Your Boat
Physical Science
Third Grade
The purpose of this science fair project is to determine whether a thin wire or a thick wire more effectively energizes a light bulb connected to a battery.
Does Electricity Move Better through Thick Wires or Thin Ones?
Elementary School
Electricity and Magnetism
In this project children practice the scientific method while playing with puffy paint.
Practicing the Scientific Method with Puffy Paint
Elementary School
Chemistry
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
Physical Science

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