Plate tectonics

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Across
  1. 5. A ridge in the middle of the ocean.
  2. 6. Two plates moving together
  3. 7. Blank is made at destructive, or convergent, plate boundaries.
  4. 9. When the ocean floor goes under another.
  5. 10. New areas of ocean crust.
Down
  1. 1. Two tectonic plates that slide past each other.
  2. 2. Two plates moving in opposite directions.
  3. 3. Melted rock
  4. 4. Valleys that form at divergent boundaries.
  5. 8. Blank is made at convergent boundaries.