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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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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
Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.
Fourth Grade
Medium
The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.
Fourth Grade
Elementary School
What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!
Fourth Grade
Chemistry
This science fair project idea explores the different properties & interactions of sugar molecules.
Fourth Grade
Elementary School
This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.
Fourth Grade
Easy
This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.
Fourth Grade
Elementary School
This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.
Fourth Grade
Elementary School
Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.
Fourth Grade
Third Grade
This science fair project idea  researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.
Fourth Grade
Elementary School
In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.
Fourth Grade
Third Grade

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