talons cards 9-11-17

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Across
  1. 2. a device that reflects sound waves off underwater objects
  2. 3. an aggressive young man that is usually a trouble maker
  3. 5. the process by which the crust sinks back into the mantle at a colding plate boundary
  4. 6. an undersea chain of mountains that is part of a long system of underwater mountains
  5. 7. the way that a person behaves
  6. 9. a force that sends an object forward
Down
  1. 1. a deep undersea valley where crust sinks toward the mantle
  2. 2. the process by which the molten material adds new crust below the earths body of water
  3. 4. aprtment housing that is overcrowded and not well taken care of
  4. 8. a original version of a blueprint