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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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Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.
Fourth Grade
Zoology
This science fair project idea determines which method of hand cleansing is the most effective.
Fourth Grade
Elementary School
Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!
Fourth Grade
Botany
Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.
Fourth Grade
Second Grade
This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.
Fourth Grade
Elementary School
This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.
Fourth Grade
Elementary School
Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.
Fourth Grade
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