2. EQ: What was Alfred Wegener’s hypothesis and what evidence did he provide to support his hypothesis?

7. I know I don’t know Phrases & Words:

8. * Alfred Wegener Wagener's hypothesis was that all the continents had once been joined together in a single landmass and have since drifted apart.

9. Pangaea (from the Greek for "all the Earth") I know I don’t know Phrases & Words: Pangaea's Moving Farther Apart Again Song Video

10.  Pangaea- the name Wagener gave to the super continent, meaning “all lands”  Wagener believed that Pangaea had broken apart and that the pieces had slowly moved to become the continents they are today Pangaea (from the Greek for "all the Earth")

11.  The idea that the continents slowly moved over Earth’s surface

15. 1) Evidence from Landforms

18. 2) Evidence from Fossils  Fossil- any trace of an ancient organism preserved in rock

19. 3) Evidence from Climate

21. I know I don’t know Phrases & Words:

22. Video

23. 1) Many OTHER geologists believed that the mountains formed by the cooling and shrinking of Earth. 2) Wegener thought mountains formed when drifting continents collided, causing their edges to crumple and fold.

27. 3) Wegener could not provide a satisfactory explanation for the force that pushes or pulls the continents. Wegener died in 1930 on an expedition to Greenland’s continental glacier. He died before scientist excepted his theory on “Continental Drift”

30. Continental Drift

36. 1. What was Wegener’s theory of continental drift? The idea that the continents slowly moved over Earth’s surface

37. 2. What were the three types of evidence Wegener used to support his theory of continental drift? Evidence form landforms Evidence form fossils Evidence form climate

38. 3. How did Wegener use evidence based on fossils to support his theory that the continents has moved? Fossils leaves of Glossopteris are found in rocks in Africa, South America, Australia, India, and Antarctica.

39. 4. What is Pangaea? Supercontinent- where all the continents were once joined together

40. 5. What was the main reason scientists rejected Wegener’s theory of continental drift? Wegener could not provide a satisfactory explanation for the force that pushes or pulls the continents

41. 6. How did Wegener think that mountains formed? He thought they formed when drifting continents collided, causing their edges to crumple and fold

42. 7. How do the locations of mountains support Wegener’s idea about how mountains form? Mountains usually occur in narrow bands along the edges of continents, as you would expect if the collision of continents forms mountains

43. 8. What is a fossil? any trace of an ancient organism preserved in rock

44. 9. Why was Wegener’s hypothesis rejected? He could not provide a satisfactory explanation of the force to “move” continents.