Sebastian Paramo 09-15 crossword

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Across
  1. 5. A mixture of copper and tin; used to make stronger tools.
  2. 6. plate boundary.
  3. 7. A person who specializes in writing and serves as a record keeper.
  4. 8. floor spreading The process by which molten material adds new crust
  5. 9. A sharpened reed used to press markings into clay tablets.
  6. 11. A picture or drawing that represents a word or idea.
  7. 12. A deep undersea valley where crust sinks towards the mantle.
Down
  1. 1. Earth’s bodies of water.
  2. 2. The process by which crust sinks back into the mantle at a
  3. 3. the echoes.
  4. 4. A type of writing made up of wedge-shaped markings.
  5. 8. of underwater mountains.
  6. 9. A device that reflects sound waves off underwater objects and
  7. 10. ocean ridge An undersea chain of mountains that is part of a long