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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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Fifth Grade

How to Inflate a Balloon Using Baking Soda and Vinegar

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Homemade Lava Lamp

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

Does Mint Actually Cool Things Down?

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Renewable Energy Project for Kids: Power from Water

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

How to Make Lightning

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

Plant Phototropism Experiment

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Self-Inflating Balloons

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

Catalase and Hydrogen Peroxide Experiment

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

Construct batteries that make electricity from fruits with this fun science fair project.

Windmill Model Science Project

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.

Taste Perception

This project examines whether people's taste perception is influenced by what they see.

Which Food Will Mold the Fastest?

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Growing Crystals

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Heat Capacity of Water vs. Heat Capacity of Oil

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

How to Make the Perfect Shot in Basketball

This basketball project explores the best way to make the perfect shot every time.

Plane Mirror Reflection Experiment

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Does The Color of Light Affect Plant Growth?

This science fair project idea determines if the color of light affects the growth of plants.

Light Absorption and Color Filters

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Homemade Vacuum Chamber

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Do Plants Need Water?

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

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