contracts Jacob Rice

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