This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

A cool physics science fair project idea for 7th grade exploring the application of distance, velocity, and time equations.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Can the force of air be used to propel a vehicle? This science experiment provides step-by-step instructions to help you answer this question.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

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

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

In this project, you will observe and record changes in sunspots over two weeks.

This project compares the strength of one, two, and three-ply toilet paper.

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

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

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

This science fair project idea focuses on two classes of sugars monosaccharides (fructose) and disaccharides (sucrose or table sugar).

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

Administer IQ tests to volunteers. have one group practice typical IQ test problems. Then compare results of the two groups.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Monitor the impact learning how to play chess has an academic performance. Divide subjects into two groups compare GPA

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.