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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 investigates the difference in reaction times between boys and girls.
Fourth Grade
Physics
In this project, waves of vibrations are experimented with using water in glasses.
Fourth Grade
Physics
In this project students experiment with making music using only glasses of water.
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
Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.
Fourth Grade
Physics
Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.
Fourth Grade
Physics
Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.
Fourth Grade
Physics
The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.
Fourth Grade
Physics
This science project idea examines the effect of microwaving on various objects.
Fourth Grade
Physics

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