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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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4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.
Fourth Grade
Zoology
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
This science fair project idea compares biodiversity between drops of water.
Fourth Grade
Elementary School
In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.
Fourth Grade
Earth & Space Science
Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.
Fourth Grade
Third Grade
This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.
Fourth Grade
Elementary School
Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.
Fourth Grade
Third Grade
Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.
Fourth Grade
Elementary School
This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.
Fourth Grade
Third Grade

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