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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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The objective of this science fair project idea is to  determine if sound travels best through the air, water or a solid.
Fourth Grade
Physics
What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.
Fourth Grade
Physics
Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.
Fourth Grade
Physics
With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.
Fourth Grade
Physics
This science fair project idea  investigates if heat from direct sunlight is hotter than heat from reflected sunlight.
Fourth Grade
Physics
This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.
Fourth Grade
Physics
This science fair project idea investigates the difference in reaction times between boys and girls.
Fourth Grade
Physics
This science fair project idea examines the reason boats are shaped and engineered.
Fourth Grade
Physics
This science fair project idea discovers whether there are some objects that do not fall at a constant rate.
Fourth Grade
Physics
In this project, waves of vibrations are experimented with using water in glasses.
Fourth Grade
Physics

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