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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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What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!
Fourth Grade
Chemistry
This science fair project creates a visual model of whatâs happening to  sound waves as a car approaches and then leaves.
Fourth Grade
Fifth Grade
In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.
Fourth Grade
Oceans
How do fish breathe? How do gills work? In this science project, learn about aquatic respiration and find a fish's breathing rate in different temperatures.
Fourth Grade
Easy
Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.
Fourth Grade
Elementary School
This science fair project explores how osmotic pressure forces water through the root up into the plant.
Fourth Grade
Elementary School
This project explores whether people's choice of a 'random' number is not as random as it seems.
Fourth Grade
Elementary School
Are crickets affected by temperature? Test your knowledge! This project examines whether temperature has any effect on the chirping of crickets.
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.
Fourth Grade
Elementary School

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