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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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This project determines what category of person is most likely to be ticklish.
Who’s Most Ticklish?
Fourth Grade
Elementary School
Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' noseprints and discover just how unique they are!
Can Nose Prints Be Used to Identify Dogs?
Fourth Grade
Elementary School
This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.
Do Screen and Text Color Affect Retention?
Fourth Grade
Elementary School
In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.
What Lives in the Air Conditioner?
Fourth Grade
Third Grade
This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.
How Long Will Your Trash Bag Live?
Fourth Grade
Elementary School
This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.
The Psychology of Feeling Watched
Fourth Grade
Fifth Grade
Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.
Are There Other Animals that Glow Under a Black Light Besides Scorpions?
Fourth Grade
Elementary School
The objective of this science fair project is to find out how much fat is in potato chips.
How Greasy are Your Potato Chips?
Fourth Grade
Elementary School
This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.
Which Food Will Mold the Fastest?
Fourth Grade
Elementary School
This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.
Soap Science
Fourth Grade
Elementary School
This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.
Text on Screen vs. Type on Paper: Which is Easier to Remember?
Fourth Grade
Elementary School
This science fair project examines how seeds hitchhike on animals and clothing.
How Do Seeds Hitchhike?
Fourth Grade
Elementary School
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
Fourth Grade
Elementary School
The purpose of this science fair project is to investigate how the caffeine in soda drinks impacts the human heart rate.
Caffeine and Heart Rate
Fourth Grade
Kindergarten
Launch a balloon rocket! The purpose of this science fair project is to determine how the volume of air affects how far a balloon rocket travels.
How Does the Volume of Air Affect How Far a Balloon Rocket Travels?
Fourth Grade
Elementary School

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