Plate Tectonics: Continental Drift Chapter 5:

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

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

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

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?

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?

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