Earth Interior Lectures & Notes
Chapter 22 (plus several more)
9.1 Interior of the Earth
Here's the notes covering the intro to the layers of the Earth. Do not forget to copy these diagrams into your notes.
9.2 Plate Tectonics
The the nature of the lithosphere and asthenosphere determines how the plates move and the nature of the boundaries. Visit the flash movie from the notes: Continental Drift. And, remember, this movement is what lies behind volcanoes and earthquakes.