Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

This kids' activity is fun to perform and impressive to watch. Plus, it's a great example of Newton's First Law of Motion at work.

This simple experiment serves as an introduction to the greenhouse effect.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science experiment tests if dog saliva can really help heal wounds.

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

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

introduction to organic chemistry. study what happens when polymer molecules are mixed with borax solution.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

Science fair project that explains and demonstrates the parallax principle.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Make a lei and bring a touch of the tropical lifestyle into your home!

Determine the maximum distance traveled by projectiles launched at an angle. Use some cool math to figure out at which angle your projectile will go farthest.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

The purpose of this science project is to determine which stimulus, gravity or water, will cause the greatest growth response in a plant.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?