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Plate Tectonics: An Introduction
In the early 1900s, most geologists thought that Earth's appearance, including the arrangement of the continents, had changed little since its formation. This video segment describes the impact the theory of plate tectonics has had on our understanding of Earth's geological history, and provides a brief overview of what is currently known about the Earth's tectonic plates and their motions. The segment is two minutes twenty-one seconds in length. A background essay and list of discussion questions are also provided.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
Type of resource:
  • Visual:
    • Video
  • Text:
    • Ref. material
Subject:
  • Geological Sciences:
    • Geology
Technical requirements:
QuickTime plug-in
Cost / Copyright:
No cost
Source: Discovering Women, "Earth Explorer". Copyright 2002-2006, WGBH Educational Foundation. All rights reserved.
DLESE Catalog ID: DLESE-000-000-009-843
Educational standards:
  • National Science Education Standards (NSES):
    • 5-8:
      • D - Earth and space science:
        • Earth's history
        • Structure of the earth system
    • 9-12:
      • D - Earth and space science:
        • Energy in the earth system
        • Geochemical cycles
        • Origin and evolution of the earth system
Resource contact / Creator / Publisher:
Publisher: WGBH Educational Foundation
http://www.wgbh.org/