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

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

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

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

This science fair project idea demonstrates that plants give off water.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.