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.

Science fair project that determines the correlation between the ability of selected materials to conduct heat and a material's density.

Learn whether dark green and leafy veggies tend to have a higher Vitamin C content than lighter green varieties.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

Blend art and science in this hands-on activity that shows your kindergartener how primary colors combine to make secondary colors.

What happens when colored beams of light mix? You might be surprised.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

How does light affect plant growth? Do different colors of light work better than others? Find out in this classic science fair project idea.

Show your preschooler how to make a print of a butterfly using her hand as a tool--a great way to stimulate her sense of touch.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

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

Reuse and recycle cardboard tubes to make spooky spiders, kooky caterpillars, wacky worms, and more.