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Physical Science - Science Fair Project Ideas

Find the physical science, science fair project ideas you're looking for. Many different science fair projects are available for you to browse through and get ideas for your own science fair project.

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This science fair project idea lets you build your own wind tunnel and tests different models of paper airplane.
What Kind Of Paper Airplane Works Best?
Physics
Middle School
Read about how to make your own lighting- a great science fair project idea. Read more.
Make Your Own Lightning
Electricity and Magnetism
Middle School
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?
Physics
Elementary School
Determine the relationship between the speed of a sound and the temperature of the air it passes through.
The Effect of Temperature on the Speed of Sound
Physics
Middle School
Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.
Creating a Compound Machine Using Simple Machines
Physical Science
Elementary School
Examine whether males or females are more likely to have a higher center of gravity.
Girls vs. Guys: Center of Gravity
Physics
Middle School
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
Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.
Can you Change the Speed of a Reaction by Changing the Particle Size of the Reactants?
Chemistry
Middle 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
Chemistry
Elementary School
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
Second Grade
Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.
Meat Science!
Chemistry
Fifth Grade
More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.
How Does Slope Affect the Height of a Roller Coaster?
Physics
Middle School
Middle school science fair project helps determine the freezing and boiling points of water and the effect of salt and other solutes on these temperatures.
Phase Changes: Determine the Freezing and Boiling Points of Water
Chemistry
Middle School
This science fair project examines whether ocean water can be made safe to drink.
How to Make Salt Water Drinkable
Chemistry
Middle School
This free, fun and easy science fair project's idea is to design methods to measure frictions and shows how to reduce friction between objects.
How to Reduce Friction
Physical Science
Physics

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