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2. Name this Plate Boundary

3. Divergent Plate Boundary

4. Name the giant underwater mountain chain that is shown below

5. Mid Ocean Ridge or MOR

6. Name the Plate Boundary Shown Below

7. Convergent Plate Boundary

8. Here we see two plates sliding past each other
Here we see two plates sliding past each other. Name the Plate Boundary:

9. Transform Plate Boundary

10. When two plates are colliding, what factor determines which plate will be pushed under the other?

11. Density

12. Who came up with the idea that all the continents were once one giant continent (Pangaea)?

13. Alfred Wegner

14. Stress that pushes a rock together until it folds or breaks

15. Compression

16. Stress that pulls a rock apart

17. Tension

18. This is the layer of the earth where convection currents occur.

19. The Asthenosphere

20. How would you describe the age of rocks at the MOR?

21. They are they youngest rocks in the oceans because new rock is created at the MOR

22. What type of plate boundary deals with sea floor spreading?

23. Divergent plate boundary

24. What does the mercalli measure

25. It measures the intensity of an earthquake

26. Name the most destructive of all waves?

27. R Waves

28. How do you use the mercalli scale?

29. You observe the destruction the earthquake causes
You observe the destruction the earthquake causes. Anyone can use the Mercalli scale.

30. How does the San Andreas Fault work
How does the San Andreas Fault work? (include the names of the plates involved!)

31. The Pacific plate slides northwest against the North American Plate

32. Name the two types of crust

33. Oceanic and Continental

34. What does the Richter Scale measure

35. It measures the magnitude of the earthquake using a seismograph

36. What is strain?

37. The permanent change in shape of a rock

38. Define focus

39. The place inside the earth where the earthquake occurs

40. Name the place on the surface of the earth directly above the focus

41. The epicenter

42. These type of waves can travel through solids and liquids and are the fastest moving seismic waves

43. P Waves

44. This Country is located directly on the MOR

45. Iceland

46. This type of wave travels only through solids
This type of wave travels only through solids. It is the second fastest wave.

47. S Waves

48. These waves look like an S-wave on it’s side

49. L Waves

50. How are mountains formed

51. Mountains are formed when 2 continental plates meet at a convergent boundary. The rocks push together and make mountains