This science fair project idea investigates the hardness property of minerals.

Use pepper and soap to discover some fun facts about the properties of water.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Bring a little science to your third grader's Christmas as you test out his sense of smell by exposing him to common Christmas scents found in your kitchen.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Help your child practice symmetry with this fun activity that will leave your child with a sweet symmetrical treat!

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

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.