plate boundaries

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Across
  1. 1. currents deep in the mantle
  2. 4. a wave in the earth produced by earthquakes or other means
  3. 5. caused by two plates pushing together
  4. 6. long, narrow depressions of the sea floor
  5. 8. magma rises from below the crust and explodes from the crust, turning into lava
  6. 9. lava which is below the crust
  7. 10. what sub-layers of the earths crust that move and float
  8. 12. the capacity for work or vigorous activity
Down
  1. 2. of, relating to, or characteristic of a continent
  2. 3. there is one along the west coast of south america
  3. 7. a sudden violent shaking of the ground
  4. 11. closest layer of the earth to us