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Fourth Grade Science Fair Project Ideas

Building off of what they learned in 3rd grade, 4th graders add a new level of sophistication to their 4th grade science projects. In addition to describing data quantitatively, kids begin to use their observations to formulate scientific arguments and engage in scientific debate. 4th grade science fair projects may involve kids going beyond testing a hypothesis—young scientists can be encouraged to use their results to make predictions about what might happen when the experiment is expanded to test new variables. Education.com's selection of fourth grade science fair project ideas are carefully written with 4th graders in mind, giving them the tools they need to effectively learn about the world around them by pursuing the answers to their questions in a methodical way.

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This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.
Fourth Grade
Elementary School
The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.
Fourth Grade
Fifth Grade
This science fair project idea  determines what household items are good conductors of electricity.
Fourth Grade
Elementary School
This project investigates the affect of storage temperature on microwave popcorn.
Fourth Grade
Elementary School
This science fair project idea explores the different properties of matter.
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.
Fourth Grade
Elementary School
This science fair project idea  provides evidence that air is everywhere and takes up space.
Fourth Grade
Elementary School
In this project students experiment with making music using only glasses of water.
Fourth Grade
Elementary School
This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.
Fourth Grade
Elementary School
This science fair project idea  produces sounds by creating vibrations using different objects.
Fourth Grade
Elementary School
This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?
Fourth Grade
Elementary School
The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.
Fourth Grade
Elementary School
What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!
Fourth Grade
Elementary School
This science fair project idea identifies trees using a dichotomous key.
Fourth Grade
Elementary School
Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.
Fourth Grade
Elementary School

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