Plate Tectonics by Cole Murphy

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Across
  1. 5. The outer most layer of the earth.
  2. 6. The ________ boundary where plates move away fom each other.
  3. 8. The innermost layer of the earth.
  4. 9. The hypothesis that continents slowly move across the earth's surface is __________ drift.
  5. 13. The ________ boundary where plates slide past each other.
  6. 14. The result of force distributed over an area.
  7. 15. Earthquakes often occur at _______.
  8. 16. The layer of hot viscous rock between the crust and core.
  9. 17. _______ is the amount of mass in a given volume.
Down
  1. 1. The earth's surface is always _________.
  2. 2. The name of the process where one tectonic plate moves under another and sinks into the mantle.
  3. 3. Who first proposed Plate Tectonics theory?
  4. 4. In order for an idea to become a theory you need.
  5. 7. Transform Boundaries can cause _______.
  6. 9. The _______ boundary is where plates move towards each other.
  7. 10. San Andreas fault is a _________ boundary.
  8. 11. How many layers make up the earth?
  9. 12. Divergent Boundaries cause oceans to grow _______.