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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 science fair project, students create their own miniature salt flats at home.
Fourth Grade
Fifth Grade
Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.
Fourth Grade
Easy
This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.
Fourth Grade
Elementary School
In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.
Fourth Grade
Easy
This science experiment tests if dog saliva can really help heal wounds.
Fourth Grade
Elementary School
This science fair project idea is develops new or improved paper making techniques and encourages recycling.
Fourth Grade
Elementary School
This science fair project will help students learn about non-vascular plants, such as mosses.
Fourth Grade
Second Grade
In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!
Fourth Grade
Elementary School
This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.
Fourth Grade
Elementary School
This science fair project idea determines which method of hand cleansing is the most effective.
Fourth Grade
Elementary School
Discover how and which salt melts ice the quickest.
Fourth Grade
Elementary School
The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.
Fourth Grade
Easy

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