Plate Tectonics, Earthquakes and Volcanoes

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Across
  1. 2. a theory explaining the structure of the earth's crust
  2. 7. the amount of earths layers
  3. 8. where plates move apart
  4. 10. the only liquid layer of earth
  5. 12. second layer of earth
  6. 13. what the inner core is mostly made of
  7. 14. whats along the pacific ocean
  8. 15. the amount of locations you need marked for an earthquake
  9. 17. mixture of molten and semi-molten rock
Down
  1. 1. convergent, divergent, and transform
  2. 3. third layer of earth
  3. 4. openings, or vents where lava, tephra (small rocks) and steam erupt onto the Earth's surface
  4. 5. outermost layer of earth
  5. 6. hot plumes rise upward, forming volcanoes on the overlying crust
  6. 9. where plates move sideways in relation to each other
  7. 11. where plates move into one another
  8. 15. small rocks
  9. 16. what happens when two blocks of the earth suddenly slip past one another
  10. 18. powdery residue left after the burning of a substance