Gabriel Crossword 9/12/17

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Across
  1. 3. A force that sends an object forward.
  2. 5. An aggressive young man that is usually a trouble maker.
  3. 6. An original version or blueprint.
  4. 8. An undersea chain of mountains that is part of a long system of underwater mountains.
  5. 9. A device that reflects sound waves off underwater objects and records the echoes.
  6. 10. The way a person behaves.
Down
  1. 1. A deep undersea valley where crust sinks towards the mantle.
  2. 2. The process by which crust sinks back into the mantle at a colliding plate boundary.
  3. 4. The process by which molten material adds new crust below Earth's bodies of water.
  4. 7. Apartment housing that is overcrowded and not well taken care of.