Tectonic Plates

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Across
  1. 1. tectonic plates move away from each other
  2. 3. when 2 tectonic plates slide next to each other
  3. 7. Earth's second layer
  4. 8. thick part of the earths crust that forms land masses
  5. 9. a long narrow ditch
Down
  1. 2. planet we live on
  2. 4. tectonic plates collide and 1 falls under
  3. 5. when two tectonic plates collide
  4. 6. thin part of earths crust which is under the ocean