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What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

This science experiment tests if dog saliva can really help heal wounds.

In this activity your child will create their very own marble maze!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science fair project idea produces varying pitches of sound.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

This science fair project idea determines which method of hand cleansing is the most effective.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

This science fair project will help students learn about non-vascular plants, such as mosses.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.