Plate Tectonics Vocabulary

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Across
  1. 2. A hypothesis that states that the landmasses on Earth are always moving due to convection currents in the mantle
  2. 6. Tectonic plates that come together or collide because of convection currents moving them together
  3. 8. A 225 million year old landmass containing all of our present continents combined into one
  4. 9. A theory that said the continental plates were once all combined as one supercontinent, until they drifted apart
  5. 10. The place where one tectonic plate goes under another in when boundaries converge.
  6. 11. The name of the scientist that founded the theory of plate tectonics
Down
  1. 1. The border between two continental plates where they can move past each other
  2. 3. The scientists that created the theory of the sea floor spreading.
  3. 4. Tectonic plates that come apart or separate because of convection currents moving them apart
  4. 5. A process that creates new areas of the oceanic crust, destroys old ones, and makes deep sea trenches.
  5. 7. Circular currents caused by changes in heat in places like the mantle.