2. Earthquakes and volcanoes

12. Shearing

14. Tension

31. The 1 st wave to arrive after an earthquake.

35. This Many Cities are needed to find an epicenter. This Many Cities are needed to find an epicenter.

36. Three

51. Hey girl! This is made up FINE, rocky particles as small as a speck of dust.

53. Hey guys! This type of volcano will never erupt again.

55. OMG! This is a volcano that’s shaped like a knight’s protective device.

57. Yo! This is the opening at the top of a volcano.

59. The level of this material determines how explosive an eruption will be.