Plate Tectonics Vocabulary

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Across
  1. 3. A number of rigid, but moving, pieces of the Earths surface.
  2. 5. The outer shell of Earth that extends to a depth of 100 km.
  3. 6. Forms when two (Crustal) Lithospheric plates come together.
Down
  1. 1. States that youngest rocks of the ocean floor are at diverging boundaries, moving outward.
  2. 2. Forms when two (Crustal) Lithospheric plates move apart.
  3. 4. Theory of the formation and movement of the plates that cover the Earth's surface.
  4. 6. The theory that all continents are fragments of Pangaea now drifting apart.
  5. 7. The partially melted layer of the mantle that underlies the lithosphere.
  6. 8. Forms when two (Crustal) Lithospheric plates slide past each other.