Plate Tectonic Crossword Puzzle

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Across
  1. 3. When two tectonic plates move away from each other?
  2. 4. A fault in California that is an example of a transform boundary?
  3. 5. When two tectonic plates collide?
  4. 6. Who discovered the continental drift theory?
  5. 9. When two continents meet head on?
  6. 10. When one tectonic plate touches another?
  7. 12. When to oceanic plates collide?
Down
  1. 1. When the mountain chains that forms on ocean floor where tectonic plates pull apart?
  2. 2. When a dense oceanc plate collide with a light,thick continental plate?
  3. 7. When two tectonic plates slide past each other?
  4. 8. When new oceanic lithosphere is formed at the midocean ridge as older material are pulled away pulled away from the ridge
  5. 11. When one tectonic plate is being pushed under by another?