Resource: A Land Born in Fire
Media Type:
QuickTime Video
Length: 5m 25s
Size: 14.8 MB
The volcanic eruptions that formed the islands of Hawaii are still active today. Kilauea, on the Big Island of Hawaii, ranks among the world's most active volcanoes and provides a dramatic display of volcanic power. The volcano’s newest cone, Pu`u `O`o regularly spews molten rock, and its steady flow of lava in the past two decades has added more than 500 acres to the island. In this video segment from Nature, follow geologists as they retrieve samples from a fresh batch of Kilauea's molten lava.
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Transcript (Rich Text Format Document)
Loading reviews...Teachers' Domain, A Land Born in Fire, published November 18, 2008, retrieved on ,
http://www.teachersdomain.org/resource/nat08.earth.geol.tec.fire/
- Background Essay
- Questions for Discussion
- Standards
Print Background EssayVolcanoes form when magma from beneath the Earth’s crust breaks through the surface and erupts. As the erupting lava cools, new islands are created. Every several thousand years, a new island emerges from the sea. It is immediately exposed to winds and rain that erode its surface, but seeds and spores, blown by the wind, become embedded in the newly-formed soil. In a relatively short period of time, the barren rock surface is transformed into a lush tropical island. Today, lava flows from active volcanoes can provide information about underground magma flow, yielding information about potential future eruptions. In spite of scientific advances, however, there is not yet a method for predicting volcanic eruptions with complete accuracy.
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Source: Nature: "Violent Hawaii"
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Major corporate support for the Nature collection was provided by Canon U.S.A. and SC Johnson. Additional support was provided by the Corporation for Public Broadcasting and the nation’s public television stations.