Science Tectonic Plates

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Across
  1. 1. these plates collide and one of the plates goes under the other
  2. 4. this rises in between the divergent plates and hardens into rock
  3. 6. layer below the crust
  4. 7. these plates move away from each other
  5. 9. these plates collide and one of the plates goes on top of the other
Down
  1. 2. these plates move towards each other and collide to form a mountain
  2. 3. caused by divergent boundaries
  3. 4. caused by convergent boundaries
  4. 5. the transform ______, the divergent ______, the convergent _____
  5. 8. crack, split, or break in something (hint : __ valleys)