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In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

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

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

In this experiment you will replicate the mummification process by making a hot dog mummy.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

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

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

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

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

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

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

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

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.

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.

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

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

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

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

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.