Plate tectonics

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Across
  1. 2. Source of the heat in the mantle.
  2. 8. The solid zone of the Earth that makes up the tectonic plates.
  3. 9. The outer most solid portion of planet Earth.
  4. 11. The force that causes the seafloor to spread and continents to drift
  5. 12. The theory of continental drift.
  6. 13. Seafloor......................
  7. 14. Palentologists noticed that these were the same on different continents even though the continents were separated by oceans.
  8. 15. The deepest parts of the oceans.
Down
  1. 1. Places where new seafloor is being created, may have volcanic zones.
  2. 3. Alfred Wegener noticed that the coast of South America seemed to fit into the coast of this continent just like a jigsaw puzzle.
  3. 4. Plate......................
  4. 5. The zone below the lithosphere, it is more plastic than the lithosphere and so is easier to bend.
  5. 6. Scientist who first proposed the theory that continents drifted.
  6. 7. ...................zones.Places where the seafloor is forced under continental plates.
  7. 10. Section of the Earth below the crust.