Plate tectonics

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Across
  1. 2. what igneous rock is made in a volcano?
  2. 5. What rock is made under intense heat and pressure?
  3. 7. what rock is made from cooling magma outside of the volcano?
  4. 8. what boundary makes earthquakes?
  5. 11. what is a violent shaking in the ground?
  6. 12. what is a underwater mountain range?
  7. 14. what did Harry Hess find?
  8. 15. what did Alfred Wegener find?
Down
  1. 1. when the oceanic plate goes under the continental plate?
  2. 3. what rock is made from sediments?
  3. 4. what boundary makes mountains?
  4. 6. what is a crack in the crust where magma flows?
  5. 9. what is melted rock in the ground?
  6. 10. melted rock above the ground
  7. 13. what boundary make mid-ocean ridges?