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Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

The goal of this project is to create an exciting topographical map out of dough.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This science fair project idea produces sounds by creating vibrations using different objects.

This experiment tests which gender is better at catching how a magician performs his tricks.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Start your toy engines -- this is going to be a fast and friction-filled race!

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?