Unit 4 Review

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Across
  1. 4. Consists of the crust and uppermost part of the mantle.
  2. 5. The supercontinent
  3. 9. Location where subduction occurs.
  4. 10. Any trace of a living organism preserved in rock.
  5. 12. Evidence that the climate of warmer areas used to much colder.
  6. 13. Type of plate boundary where plates are coming together.
Down
  1. 1. Type of plate boundary where plates are moving apart.
  2. 2. Discovered the presence of the mid-ocean ridge in the Atlantic Ocean
  3. 3. Proposed the idea of sea floor spreading.
  4. 6. Portion of the mantle that causes the surface of the Earth to move.
  5. 7. Type of plate boundary where plates are sliding past each other.
  6. 8. The true edge of the continents
  7. 11. Process where oceanic crust sinks into the mantle.