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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 investigate how the caffeine in soda drinks impacts the human heart rate.
Caffeine and Heart Rate
Fourth Grade
Kindergarten
In this experiment, the weight of aluminum cans will be compared.
Illuminating Aluminum
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
Using a nine-volt battery to create an electrical field around a nail, students make their own electromagnet.
DIY Electromagnet
Fourth Grade
Fifth Grade
In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.
When Seeds Explode
Fourth Grade
Elementary School
This science experiment tests if dog saliva can really help heal wounds.
Can Doggy Drool Really Kill Germs?
Fourth Grade
Elementary 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
Fourth Grade
Elementary School
This science fair project challenges students to study how camouflage and environment are related in squirrel populations.
Squirrels and Their Surroundings: The Relationship Between Camouflage and Habitat
Fourth Grade
Elementary School
The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.
Fresh Food vs. Frozen Food
Fourth Grade
Elementary School
This science fair project idea determines the most effective method of preserving food.
Preserving Foods
Fourth Grade
Elementary School
This project tests the feasibility of earthworms as a means of recycling kitchen waste into fertile garden soil.
Can Earthworms be Used to Recycle Kitchen Wastes into Fertile Garden Soil?
Fourth Grade
Fifth Grade
The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.
What Makes the Best Compost Pile?
Fourth Grade
Elementary School
How Does a Compass Work?
Fourth Grade
Elementary School
This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.
The Mohs Test: How to Compare the Hardness of Minerals
Fourth Grade
Elementary School
This science fair project teaches students the differences between fruits and vegetables.
Is it a Fruit or a Veggie?
Fourth Grade
Elementary School

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