1. Review Ch. 4

2. Earth’s Layers  What happens when the depth of Earth’s surface increases?  How do geologist observe Earth’s interior?  What is the order of Earth’s layers from the surface?  What happens when the depth of Earth’s surface increases?  How do geologist observe Earth’s interior?  What is the order of Earth’s layers from the surface?

3.  Describe Earth’s inner core.  What causes Earth’s magnetic field?  Describe Earth’s inner core.  What causes Earth’s magnetic field?

4. Heat Transfer  What are the three types of heat transfer?  Describe the three types.  What type of heat is in the mantle? What part of the mantle?  What are the three types of heat transfer?  Describe the three types.  What type of heat is in the mantle? What part of the mantle?

5. Drifting Continents  What was Wegener’s hypothesis on continental drift?  What is Pangea? What is continental drift?  What three types of evidence did Wegener use to support his theory?  What was Wegener’s hypothesis on continental drift?  What is Pangea? What is continental drift?  What three types of evidence did Wegener use to support his theory?

6. Sea-Floor Spreading  What is the mid-ocean ridge?  How do scientist map out the bottom of the ocean?  Describe the process of sea-floor spreading.  What is the mid-ocean ridge?  How do scientist map out the bottom of the ocean?  Describe the process of sea-floor spreading.

7.  What are the three types of evidence?