1. Reforming the Earth Plate Tectonics Boundaries Earthquakes Volcanoes Random 100 200 300 400 500

2. Solid, outer layer consisting of the crust and upper mantle Answer

3. Lithosphere Home

4. Answer This type of crust has a low density made of silica rich rock

5. Home Continental crust

6. Layer of plastic rock below the lithosphere Answer

7. Asthenosphere Home

8. Dense crust made of iron and magnesium Answer

9. Oceanic crust Home

10. What forms when oceanic lithosphere subducts beneath oceanic lithosphere? Answer

11. An Island Arc Home

12. What is an undersea mountain range formed at a divergent boundary? Answer

13. Home Mid-ocean Ridge

14. What kind of boundary would from a mountain range? Answer

15. Convergent Home

16. Boundary where 2 plates are moving away from each other Answer

17. Divergent Home

18. Where are most divergent boundaries found? Answer

19. On the ocean floor Home

20. The San Andreas Fault is an example of this type of boundary Answer

21. Home. Transform

22. What are 2 types of surface waves? Answer

23. Love and Rayleigh Home

24. Answer What is an area where no direct seismic waves can Be detected?

25. Home Shadow Zone

26. What scale do we use to describe the intensity of an earthquake? Answer

27. Modified Mercalli Home

28. What is it called when rocks on each side of a fault suddenly return to their undeformed shape? Answer

29. Elastic Rebound Home

30. What are the most damaging seismic waves? Answer

31. Surface Waves Home

32. Answer When this molten rock solidifies beneath Earth’s surface, intrusive igneous rock forms

33. Magma Home

34. Magma that erupts onto Earth’s surface is called what? Answer

35. Lava Home

36. Volcanically active area of Earth’s surface commonly far away from a tectonic plate Answer

37. Hot Spot Home

38. This forms in the ocean where one plate is subducted Answer

39. Home Trench

40. Answer Magma formed from an underwater volcano is called what?

41. Pillow Lava Home

42. What is the supercontinent that formed 300 million years ago? Answer

43. Pangea Home

44. What scales do we use to measure the magnitude of an earthquake? Answer

45. Richter and Moment Magnitude Home

46. The point on Earth’s surface directly above the focus of an earthquake Answer

47. Epicenter Home

48. A large pluton that can cover an area as big as 100 km 2 is a _________ Answer

49. Batholith Home

50. Devils Tower was caused by the cooling of magma within Earth’s crust until erosion revealed it. What is this structure called? Answer

51. A Pluton Home