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This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

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

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

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

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

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

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

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

This clay "painting" activity encourages and supports creative development and critical thinking skills.

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.

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.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

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

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

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

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

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

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.