Plate Technonics

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Across
  1. 4. theory that the continents once formed a single land mass
  2. 5. boundary where two plates are moving away
  3. 8. a block of lithosphere
Down
  1. 1. solid outer layer of earth
  2. 2. squeezing force
  3. 3. the layer of rock between the earth's crust and core
  4. 4. boundary where two plate collide
  5. 6. areas of crust rising
  6. 7. central part of earth below the mantle
  7. 9. stretching force