This Discovery Channel website features a large assortment of fascinating information about the physical environment of the earth. The website's live cam shows images of Mexico's Popocatepetl, one the most active volcanoes. Visitors can observe the big craters created on the earth by past meteors while students can create their own earthquake. And, users can find daily pictures and journal writings from a team of Mt. Everest climbers. With so many online earth adventures and activities, everyone should visit this fun and exciting website.