"A fact-packed reference book plus links to safe, homework-helpful web sites"--Cover. "Google." Previously published as: Earth, c2004, in series: E.guides. Includes index.

How to use the web site -- Earth in the universe -- The sun and moon -- Magnetic Earth -- Earth and life -- The age of the Earth -- Inside the Earth -- Moving Earth -- Exploding Earth -- Rivers of fire -- Living with volcanoes -- Earthquakes -- Studying earthquakes -- San Andreas Fault -- Mountain building -- Landslides -- Rocks -- Minerals and crystals -- Erosion -- Islands -- Glaciers and ice sheets -- Soil -- Rivers -- Caves -- Deserts -- Tropical forests -- Temperate forests -- Grasslands -- Wetlands -- Polar regions -- Marine -- Oceans -- Waves and tsunamis -- El Nino -- Exploring ocean depths -- Atmosphere -- Climate change -- Weather -- Precipitation -- Weather forecasting -- Tornadoes -- Hurricanes.