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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 determines if the color of light affects the growth of plants.
Fourth Grade
Elementary School
The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.
Fourth Grade
Elementary School
The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.
Fourth Grade
Elementary School
This science fair project idea determines if the temperature of rubber effects how high it bounces.
Fourth Grade
Elementary School
This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.
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.
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
How do organic materials become soil? This science experiment measures what materials biodegrade.
Fourth Grade
Elementary School
This science fair project idea  determines what household items are good conductors of electricity.
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
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 study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?
Fourth Grade
Elementary School
In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.
Fourth Grade
Chemistry

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