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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

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.

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

Reservoir Capacity of Igneous, Sedimentary, and Metamorphic Rocks

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

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.

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.

3D Model of the Sun

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

How to Measure Viscosity of Liquids

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

What Causes the Phases of the Moon?

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Made In The Shade

This science fair project idea deals with the qualities of shade on a sunny day.

How Good is Your Sense of Smell?

This science fair project idea determines if family members can recognize one another using only the sense of smell.

Blindfolded Taste Test

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

Off All the Nerve

This science fair project idea discovers which parts of the body are more sensitive to touch than other parts of the body.

Radio Waves, It's In The Air: Build A Basic Radio

The purpose of this science fair project is to build a basic radio.

The Answer is Blowing in the Wind

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Nine: The Biggest Little Number

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Balloon Rocket Experiment

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Tensile Strength Test

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

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.

Does Ultraviolet (UV) Light Pass through Some Colors More than Others?

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Salinity and Hatching Brine Shrimp Eggs

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Sink or Swim: Calculating Density of Fruits and Vegetables

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Caffeine and Heart Rate: What Is the Effect of Caffeine on Heart Rate?

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

How to Make Gears

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

How to Make a Rubber Band Car

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

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