Physical Geography: Volcanoes of the United States (DVD)

Discover the Wonders of Our Earth and the forces and life forms that shape our world with the Physical Geography Series.

The United States is fortunate to have active and dormant volcanoes in many of her Western States.

This program visits some of the most prominent volcanoes in America including: Craters of the Moon in Idaho, Mount Lassen in California and Mount St.

Helen's in Washington.

Subjects covered include: Where volcanic activity has taken place in the U.S., How volcanoes are classified, the difference between a Shield Volcano and a Composite Volcano, Why and where volcanoes occur along the Pacific Ocean's quot;Ring of Fire,quot;, Lava tube tunnels, lava fields and volcanic caves, Visualization of volcanic terms such as lava, lava bombs, ash, pyroclastic flows and pumice.

Physical Geography: Volcanoes of the United States (DVD)