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Plate Tectonics: Continental Drift

Explore the Earth's layers, from the crust to the inner core, and learn about plate tectonics, continental drift, and the theories of geologist Alfred Wegener. Discover how the different layers interact and how they contribute to the dynamic processes shaping our planet.

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Plate Tectonics: Continental Drift

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  1. Plate Tectonics:Continental Drift Chapter 5:

  2. Crust Mantle Core Lithosphere Asthenosphere Mesosphere Outer Core Inner Core Composition versus Structure

  3. Breakdown of the Earth • Lithosphere = Crust and upper part of mantle, solid • Asthenosphere = Mantle, convection currents, putty • Outer core = core, liquid • Inner core = core, solid

  4. Foldable Earth Questions • Challenge: What is the Diameter of the earth? • How do you solve this problem? • Add all the layers • Inner core is just the radius

  5. Inner core vs outer core • How deep in the earth is the border between the outer core and inner core? • As we journey towards the center of the Earth, what happens to the temperature and pressure? Why?

  6. Inner Core • The temperature on the inner core is 6,000 degrees Celsius • Why is the outer core liquid while the inner core is solid?

  7. Continental Drift • Alfred Wegener • Theory that continents can drift apart and towards one another

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