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Fourth Grade Science Fair Project Ideas

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

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The purpose of this science fair project is to determine whether you can hear sound through a barrier.
Can Sound Travel through a Barrier?
Fourth Grade
Kindergarten
The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.
Does Ultraviolet (UV) Light Pass through Some Colors More than Others?
Fourth Grade
Elementary School
The objective of this science fair project is to determine which sunglasses block ultraviolet (UV) light better than others.
Do Some Sunglasses Block UV Light Better than Others?
Fourth Grade
Elementary School
Launch your science project to new heights! The objective of this science fair project is to determine how to make a bottle rocket reach its highest altitude.
5 . . . 4 . . . 3 . . . 2 . . . Lite - Blast Off
Fourth Grade
Elementary School
The purpose of this science fair project is to determine which liquid heats faster: water or vegetable oil.
Do Some Liquids Heat Faster than Others?
Fourth Grade
Elementary School
Is it the weight? The length of string? The height of release? The purpose of this science fair project is to discover what makes a pendulum swing fast or slow.
What Makes a Pendulum Swing Fast or Slow?
Fourth Grade
Elementary School
The purpose of this science fair project is to determine whether it takes more force to move an object over a smooth surface or a rough surface.
How Easily Do Objects Move Over Surfaces?
Fourth Grade
Elementary School
The purpose of this science fair project is to test the pH and total alkalinity of personal care products.
What Are the pH and Total Alkalinity of Personal Care Products?
Fourth Grade
Elementary School
The goal of this science fair project is to determine whether the temperature of a golf ball affects its rebound.
Temperature's Effect on Rebound of a Golf Ball
Fourth Grade
Elementary School
What combination of cloth and stain will be the easiest for removing stains? Test and experiment!
Stain Remover
Fourth Grade
Elementary School
The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.
Diaper Dissection
Fourth Grade
Elementary School
Enzymes increase the speed of a chemical reaction. The objective of this science fair project is to investigate how acids and bases affect enzyme activity.
How Do Acids and Bases Affect Enzyme Action?
Fourth Grade
Elementary School
The goal of this science fair project is to determine whether premium dog foods are healthier than less expensive brands of dog food.
Bone Appetit
Fourth Grade
Elementary School
The purpose of this science fair project is to determine which household products are acids or bases.
Are Household Powders Acids or Bases?
Fourth Grade
Elementary School
The purpose of this science fair project is to explore which soaps release the most water when heated in the microwave.
Which Brand of Soap Releases the Most Water Quickly?
Fourth Grade
Elementary School

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