Plate tectonics

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Across
  1. 1. discovered plate tectonics
  2. 5. when plates pull together
  3. 6. the thickest layer of the earth
  4. 7. the thin layer of the earth
  5. 8. they move on the anthenosphere
  6. 9. an idea about plate tectoics
Down
  1. 2. when plates pull apart
  2. 3. Before all the continets there was this
  3. 4. when plates slide past each other
  4. 5. the continents drifting apart