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Fifth Grade Science Fair Project Ideas

Education.com's 5th grade science projects enable kids to apply everything they've learned over the course of their elementary school careers in order to discover some pretty cool and new things about the world around them. In addition to setting up more sophisticated experimental procedures, 5th graders can analyze their results using more sophisticated math, and may begin to acquire an appreciation for large sample sizes and their ability to produce more reliable averages. Browse our rich collection of 5th grade science fair projects by clicking the boxes to the left to filter your results by scientific subtopic to find fantastic 5th grade science fair projects or enlightening 5th grade science experiments for your young scientist.

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The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.
Fifth Grade
Ecology
In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.
Fifth Grade
Engineering
This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.
Fifth Grade
Elementary School
This project examines whether people's taste perception is influenced by what they see.
Fifth Grade
Elementary School
Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.
Fifth Grade
Elementary School
This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.
Fifth Grade
Elementary School
This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.
Fifth Grade
Elementary School
In this science fair project, students use the streak test to tell minerals apart from each other.
Fifth Grade
Elementary School
How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!
Fifth Grade
Electricity and Magnetism
This science fair project will help students learn about non-vascular plants, such as mosses.
Fifth Grade
Second Grade
Discover how and which salt melts ice the quickest.
Fifth Grade
Elementary School

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