Tectonic plates

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Across
  1. 3. causes plates to move
  2. 4. fracture in Earths crust
  3. 6. rigid outer layer of Earth
  4. 10. plate boundary that creates mountains
Down
  1. 1. large slab of Earths lithosphere that slowly moves
  2. 2. plate boundary that makes valleys
  3. 5. semi-fluid layer of the mantle
  4. 7. plate boundary that causes volcanoes
  5. 8. plate boundary that causes earthquakes
  6. 9. molten rock beneath Earths surface