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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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Science fair project that examines condensation and the conditions needed in order for dew to form.
Fourth Grade
Second Grade
Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?
Fourth Grade
Third Grade
Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.
Fourth Grade
Easy
What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.
Fourth Grade
Easy
The goal of this evaporation experiment is to learn about how different external conditions affect drying time.
Fourth Grade
Second Grade
Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.
Fourth Grade
Easy
This project investigates the affect of storage temperature on microwave popcorn.
Fourth Grade
Elementary School
In this science fair project, students make their own rain gauge to measure rainfall.
Fourth Grade
Weather and Climate
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
Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.
Fourth Grade
Third Grade
Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.
Fourth Grade
Weather and Climate
In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.
Fourth Grade
Easy
Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?
Fourth Grade
Second Grade

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