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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 science fair project idea determines if the temperature of rubber effects how high it bounces.
The Effects of Temperature on Bounce
Fourth Grade
Elementary School
In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.
Simple Machines
Fourth Grade
Elementary School
This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.
Growing Dried Beans
Fourth Grade
Elementary School
There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.
Creatures That Bug Us
Fourth Grade
Elementary School
This science fair project idea determines what household items are good conductors of electricity.
Conductor or Insulator
Fourth Grade
Elementary School
This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.
Compost Sorting
Fourth Grade
Elementary School
This science fair project idea explores the different properties of matter.
Separating Mixtures
Fourth Grade
Elementary School
This experiment will demonstrate the separation of polymers by melting Styrofoam cups with nail polish remover.
Melting Styrofoam with Nail Polish Remover: the Separation of Polymers
Fourth Grade
Elementary School
This science fair project idea provides evidence that air is everywhere and takes up space.
Air Is Everywhere!
Fourth Grade
Elementary School
In this experiment you explore how tectonic plates move to create land and expand bodies of water.
Exploring the Movement of Tectonic Plates with S'Mores
Fourth Grade
Elementary School
This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.
Making Light Bounce
Fourth Grade
Elementary School
This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.
Which Cup Best Prevents Ice from Melting?
Fourth Grade
Elementary School
Discover which type of magnet is the strongest.
What Type of Magnet is the Strongest?
Fourth Grade
Elementary School
This project investigates the affect of storage temperature on microwave popcorn.
Where Should You Store Your Popcorn?
Fourth Grade
Elementary School
This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.
Comparing Implements for Writing
Fourth Grade
Elementary School

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