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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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This science fair project idea determines the most effective method of preserving food.
Fourth Grade
Physical Science
Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!
Fourth Grade
Physics
This science fair project idea explores the different parts of the human ear and  models how the human ear reacts to sound waves.
Fourth Grade
Physical Science
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
Physics
This science fair project idea  researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.
Fourth Grade
Physical Science
This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.
Fourth Grade
Chemistry
This science fair project idea explores the different properties & interactions of sugar molecules.
Fourth Grade
Chemistry
Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.
Fourth Grade
Chemistry
Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.
Fourth Grade
Physics
This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.
Fourth Grade
Chemistry
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
Physics

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