1. Test Review

2. The hypothesis that continents slowly move across Earth’s surface

3. Landforms – mountain ranges that match up along different coast lines Fossils – fossils of the same organism have been found on different continents Climate – Climate has not changed over time

4. Pangaea

5. Because Wegener could not provide a mechanism for HOW the continents moved He could not explain why mountains formed in the middle of continents

6. Rift valleys Deep-sea trenches

7. Island arcs Subducting plate

8. Trench Volcanic mountain range Oceanic subducting plate

9. Folded mountain range

10. Trenches Faults Fracture zones Earthquakes

11. Divergent – created Convergent – destroyed Transform – neither created nor destroyed

12. Transform – San Andreas Fault Continental-Continental Divergent – East African Rift Valley Ocean-Ocean Divergent– Mid-Atlantic Ridge Ocean-Ocean Convergent – Mariana Trench Continental-Continental Convergent – Andes Mountains

13. Convection currents in the mantle Slab pull Ridge push

14. The mid-ocean ridge It’s where sea-floor spreading occurs

15. Crust Mantle Outer Core Inner Core

16. Crust Mantle

17. Antarctic

18. The Pacific is shrinking because of the large deep ocean trenches. The Atlantic is growing because of the large Mid-Ocean Ridge.

19. Ring of Fire

20. Shield Cinder cone Composite Hot spots

21. Convergent boundaries