earth

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Across
  1. 2. they move away from each other
  2. 6. they slide by each other
  3. 9. they push and pull
  4. 10. can only move through solid rock
Down
  1. 1. are scientists who studied the waves
  2. 3. are waves caused by explosions on or rocks
  3. 4. the origin of an earthquake
  4. 5. the point on the earth's surface vertically above the focus of an earthquake.
  5. 7. are the fastest waves
  6. 8. they move towards each other