Contnental Drift

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Across
  1. 2. the process of one plate going under another.
  2. 4. Boundary where two tectonic plates meet.
  3. 7. the supercontinent that existed before the continents drifted apart.
  4. 10. Spreading the process that creates new oceanic crust at mid-ocean ridges.
  5. 12. refers to the movement of Earth's plates.
Down
  1. 1. part of the southern supercontinent that split from Pangaea.
  2. 3. currents in the mantle that drive plate movement.
  3. 5. the rigid outer part of the Earth, involved in plate tectonics.
  4. 6. remnants of ancient organisms used as evidence for continental drift.
  5. 8. the layer of Earth where convection currents help move plates.
  6. 9. Wegener the scientist who proposed the theory of continental drift.
  7. 11. a crack or split, such as the one between separating continents.