Plate Tectonics

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