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Science Fair Projects

5th grade
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Sizing Up Marshmallows

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

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.

Making Sugar Crystals

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Which Cup Best Prevents Ice from Melting?

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Does A Longer Paper Airplane Fly Farther than a Wide One?

Find out whether a longer airplane will fly farther or a wider paper airplane.

Magnet Science Fair Project: How to Measure the Strength of a Magnet

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Potato Chip Science: How Greasy Are Your Potato Chips?

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.


Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Plant and Animal Fat Facts

Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.

How to Make the Perfect Shot in Basketball

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

Making a Static Electricity Bell

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Speedy Shoes

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Can Jell-O be Made With Just Warm Water Instead of Boiling Hot and Then Cold?

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Air Is Everywhere!

This science fair project idea provides evidence that air is everywhere and takes up space.

Blindfolded Taste Test

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

Can Smokers Hold their Breath as long as Non-Smokers?

Who can hold their breath longer, smokers or non-smokers? Find out in this science fair project idea!

Why Does Honey Crystallize?

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Which Nail Polish Lasts Longer: Matte or Shiny?

Find out whether matte or shiny nail polish lasts longer.

Helium Rising

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Create Your Own Miniature Salt Flats!

In this science fair project, students create their own miniature salt flats at home.

Reynolds Number: Laminar and Turbulent Flow

Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.

Endothermic and Exothermic Reactions Experiment

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

A Denser Coke

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Reaction Time

This science fair project idea investigates the difference in reaction times between boys and girls.

How Well Does Sound Travel Through a Gas? A Liquid? A Solid?

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Defying Gravity

This science fair project idea investigates how magnetism can defy the force of gravity.

Principles of Air Pressure

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

In the Air and All Around

How clean is the air we breathe? The answer might surprise you. Learn how to investigate local air quality with this cool science fair project.

Does Adding Salt to Pasta make it Cook Faster?

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Iron Or What?

In this project, a magnet is used to collect iron from breakfast cereals.

A Massive Or Weighty Problem

Science fair project that determines whether mass and weight are the same or different.

Melting Styrofoam with Nail Polish Remover: the Separation of Polymers

This experiment will demonstrate the separation of polymers by melting Styrofoam cups with nail polish remover.

Do Different Types of Oil Mix or “Stack”?

Do different types of oil mix or stack? Find out in this science fair project idea!

Centripetal and Centrifugal Force

What's the difference between centripetal and centrifugal force? High school students will find out by seeing both in action while conducting this experiment.

Get Cracking

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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