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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 explores  whether a plastic slinky works as well as a metal slinky when walking it down the stairs.
Fourth Grade
Elementary School
This science fair project idea explores whether white light can be separated into different colors.
Fourth Grade
Elementary School
Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.
Fourth Grade
Third Grade
This science fair project idea examines whether boys and girls differ in reflexes.
Fourth Grade
Elementary School
In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.
Fourth Grade
Elementary School
This science fair project idea investigates how magnetism can defy the force of gravity.
Fourth Grade
Elementary School
Collect meteorite dust with a magnet in your very own backyard!  The objective of this science fair project is to gather meteorite dust to study outer space.
Fourth Grade
Elementary School
This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.
Fourth Grade
Elementary School
With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.
Fourth Grade
Easy
Check out this fun science fair project idea to determine the effect of temperature on carbonation in soda.
Fourth Grade
Easy

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