This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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

This science fair project teaches students the differences between fruits and vegetables.

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

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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.

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

Science fair project that examines condensation and the conditions needed in order for dew to form.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

This classic children's game demonstrates how sound travels through air vs. through a solid.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Using a toy race car kids create a visual model of the Doppler Effect.

In this project children practice the scientific method while playing with puffy paint.

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.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

In this science fair project, students use the streak test to tell minerals apart from each other.