Seismic Activity

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Across
  1. 3. aleutian islands
  2. 5. rocks and minerals
  3. 6. core made of solid iron and nickel
  4. 9. crust + upper mantle
  5. 11. where the broken plates of the crust float
  6. 13. largest layer in 3 parts
  7. 14. when two plates slide past another
  8. 17. thin
  9. 18. crust made of granite(25 miles thick)
  10. 19. currents heat rises, cold sinks
Down
  1. 1. mantle that flows like asphalt
  2. 2. when two plates move away
  3. 4. when two plates come together
  4. 7. crust made of basalt (3-5 miles thick)
  5. 8. the amount of techtonic plates
  6. 9. densest and hottest part of the mantle
  7. 10. super continent
  8. 12. core made of liquid iron and nickel
  9. 15. when one plate sinks under the other
  10. 16. andes mountain