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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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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
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
What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.
Fourth Grade
Third Grade
Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...
Fourth Grade
Earth & Space Science
In this experiment you will replicate the mummification process by making a hot dog mummy.
Fourth Grade
First Grade
Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.
Fourth Grade
First Grade
Examine the effect of pressure on carbonation in soda.
Fourth Grade
Elementary School
This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.
Fourth Grade
Electricity and Magnetism
This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.
Fourth Grade
Elementary School
This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.
Fourth Grade
Second Grade

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