A volcanic eruption occurs when molten rock, ash and steam pour through a vent in the earth's crust. Volcanoes are described as active (in eruption), dormant (not…
Source: U.S. Dept. of the Interior, Geological Survey According to the theory of continental drift, the world was made up of a single continent through most of geologic time. That continent…
Natural disasters are extreme, sudden events caused by environmental factors that injure people and damage property. Earthquakes, windstorms, floods, and disease all strike anywhere on earth, often…
Source: iStockFrom Mount Everest as the highest mountain above sea level to Mauna Kea, the tallest mountain on Earth, there are peaks and summits all around us. Mountains used to be seen as the seats…
Taos Pueblo, Taos, New Mexico
Source: Beth Harpaz for Associated Press
Encyclopedia: Earth Encyclopedia: People and Places Famous Explorers Quiz Geography Hall of Fame Geography Glossary The…
Source: iStockFrom Russia to Canada, Kenya to Nepal, the world is dotted with bodies of water. Whether you dip your toes into a large lake with fresh water or float in the saltwater salinity of an…
Looking north over Biscayne Bay at an island (at left) and at mangroves that line the shoreline (at back).Yosemite and Yellowstone are the jewels of our national park system. But you can find plenty…
