These two websites introduce the reasons for the presence of snow through understandable text. At the first website, created by the Wisconsin Department of Natural Resources, children can learn how Wilson Bently discovered that no two snow crystals are alike. The website presents the seven types of ice crystals and the ingredients that make up snow. The second website, provided by Miami...

The Snow Crystals Web site was created by physics professor Ken Libbrecht from the California Institute of Technology. Visitors get to explore how snow crystals are created and their structure. The main page describes natural and designer snowflakes, which are created in the laboratory, along with dozens of spectacular photographs. The author also details and illustrates the crystalline lattice...