Create cool crystals on your computer! Scroll through the list of crystals, then use the stopwatch to make your crystal grow. Speed up time or slow it down using the arrows on the clock. What shapes will each crystal take? Get clicking to find out!

Rockin' Rock grower was inspired by the PLAY! Scholastic™ Crystal Growing kit. The kit includes crystal-growing material for 9 crystals, 6 display pedestals, a magnifying glass and more. Available at Toys R Us® and through the Scholastic Store.
For Parents
Subscribe to Our Parent Newsletter
Scholastic's Parent Update is a free e-newsletter, with three editions every month: one each for parents of children in preschool, elementary school, and middle school.

Sign Up
Raise a Reader
Visit Books & Reading for book lists, read-aloud tips, and learning hints for pre-readers, beginners, and older kids too. Inspire a love of books in your child!