Earth in action

Provides an introduction to earthquakes, discussing the causes, the effects, and preparing for one, and examines the earthquake in Haiti in 2010.

Provides an introduction to the danger of tornadoes, covering the science behind them, study of them, prediction of and safety from them, and accounts of tornado disasters.

Provides an introduction to volcanoes, discussing the causes, the effects, and being prepared for one, and examines the eruption of Mount Saint Helens in 1980.

Provides an introduction to tsunamis, discussing the causes, the effects, and being prepared for one, and examines the March 2011 tsunami in Kamaishi, Northern Japan.

Provides an introduction to wildfires, discussing the causes, the effects, and being prepared for one, and examines the June 2012 wildfire near Waldo Canyon, Colorado.

Introduces storm trackers, how a hurricane is formed, and what a hurricane looks like from the inside.

Provides an introduction to avalanches, discussing the causes, the effects, and being prepared for one, and examines the January 2000 avalanche in Cordova, Alaska.

An examination of floods that discusses what causes them, where they occur, the science of floods, and more.

Discusses our planet's rocks, what they are made of, how they change, the different kinds, and their uses.

An introduction to the rivers of the world, how they begin, how they shape the land, and the life they support.