Plate Tectonics

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Across
  1. 1. A trench is a ? in the ocean
  2. 5. When two plates go away from each other
  3. 6. Alfred Wegener's theory was first ____
  4. 7. tectonics causes earthquakes
  5. 8. spreading at the mid-ocean ridge a new sea floor is built
  6. 11. crust One of the two crusts
  7. 15. 2 plates slide past each other
  8. 17. Plates are located here
Down
  1. 2. Currents the power of moving the continents
  2. 3. 2 plates come together
  3. 4. there are two types of ? one is oceanic
  4. 8. happens in trenches
  5. 9. Wegener Scientist who proposed of the theory of the continental drift
  6. 10. boundaries three types divergent,convergent and transform
  7. 11. Drift Theory of the continents moving
  8. 12. Recent discovery of the plate tectonics happened in the mid
  9. 13. ? happens in the asthenosphere
  10. 14. One super continent
  11. 16. ocean ridge seafloor spreading takes place
  12. 18. Biggest plate out of the 7 major plates