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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 teaches students about wilting and browning of salad greens.
Fourth Grade
Botany
The science project fair idea explores the interaction between your nose, mouth, and brain when tasting a new food or drink.
Fourth Grade
Anatomy
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
Zoology
Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.
Fourth Grade
Life Science
Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.
Fourth Grade
Botany
This science project has students collect wood samples and invent new uses for different types of wood based on its properties.
Fourth Grade
Botany
In this science fair project you will make a model of a cell membrane using very simple material.
Fourth Grade
Life Science
Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.
Fourth Grade
Life Science
Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.
Fourth Grade
Life Science
Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.
Fourth Grade
Life Science
This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.
Fourth Grade
Botany
There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.
Fourth Grade
Life Science

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