2. Choose a category. You will be given the answer. You must give the correct question. Click to begin.

3. Click here for Final Jeopardy

4. Category BCategory DCategory E 10 Point 20 Points 30 Points 40 Points 50 Points 10 Point 20 Points 30 Points 40 Points 50 Points 30 Points 40 Points 50 Points Category CCategory A

5. Iron and nickel.

6. What are the inner and outer core mostly made of?

7. It is composed of molten rock.

8. What is the mantle?

9. Matching coastlines, matching mountain ranges, and matching large animal fossils.

10. What evidence did Wegener find?

11. It was discovered in the Atlantic.

12. What is the Mid Ocean Ridge MOR?

13. They can refract, reflect, absorb, transmit, or diffract.

14. How do seismic waves behave?

15. They know by studying seismic waves.

16. How do scientists know what is in the center of the earth?

17. A dense ball of solid metal.

18. What is the inner core?

19. By convection currents in the asthenosphere.

20. What causes the plates to move?

21. The supercontinent.

22. What is Pangaea?

23. He couldn’t prove how the continents moved.

24. Why was Wegener's theory rejected?

25. Used in the mid 1900s to map the MOR

26. What is sonar?

27. During seafloor spreading, molten material rises from the mantle here.

28. What is the MOR or divergent boundary?

29. When an oceanic plate sinks through a deep ocean trench and back into the mantle.

30. What is subduction?

31. Convection currents in the asthenosphere.

32. What do geologists think causes the plates to move?

33. The theory that states that the Earth’s plates are in constant motion.

34. What is plate tectonic theory?

35. A folded mountain is formed.

36. What happens when two continental plates converge?

37. A place where two plates come together.

38. What is a convergent boundary?

39. The V-shape in a mountain range at a divergent boundary.

40. What is a rift valley?

41. The asthenosphere is part of this layer.

42. What is the mantle?

43. The thickest layer of the Earth.

44. What is the mantle?

45. It is liquid because of reduced pressure.

46. What is the outer core?

47. Slab pull

48. What is another name for subduction?

49. The result of stresses.

50. What is a strain?

51. The heavier kind of plate.

52. What is an oceanic plate?

53. The lighter of the two kinds of plates.

54. What is a continental plate?

55. Make your wager

56. The final evidence that proved tectonic theory.

57. What is the discovery of the MOR thanks to the development of sonar and the discovery of magnetic reversals in the oceanic layers?