Library > Science & Technology > Earth Science

Plate Tectonics Online

1998
Plate tectonics is the theory of how the continents are formed. This site begins by introducing the Earth's layers and moves on to discuss the development of the plate tectonic theory. The Earth is made up of these layers, and their movements can cause earthquakes, volcanoes, and mountain building. Find out how this all happens and then read about the theories of continental drift and sea floor spreading and what part they play in plate tectonics theory.