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Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

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

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

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

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

This science fair project investigates why the number of visible stars changes from place to place.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

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

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.