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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
This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.
Fourth Grade
Elementary School
Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.
Fourth Grade
Elementary School
Fourth Grade
Elementary School
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
This science project teaches students to classify different shapes of leaves.
Fourth Grade
Botany
This science fair project idea explores the different properties & interactions of sugar molecules.
Fourth Grade
Elementary School
Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.
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
Are crickets affected by temperature? Test your knowledge! This project examines whether temperature has any effect on the chirping of crickets.
Fourth Grade
Elementary School
This science fair project explores how osmotic pressure forces water through the root up into the plant.
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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