Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

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

This project examines whether humans can intuitively grasp numeric values greater than three.

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.

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.

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.

Word color association is just a fancy way to talk about the way we connect colors with words.

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

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.

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

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.

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.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

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

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

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

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

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

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