BREANA RIVAS CROSSWORD PUZZLE 09-19-16 SEPTEMBER

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Across
  1. 1. A device that reflects sound waves off underwater objects and records echoes
  2. 2. A tool used to spread water across feilds
  3. 4. A deep undersea valley where crust sinks toward the mantle
  4. 7. An undersea chain of mountains that is a big part of a system of underwater of underwater mountains.
  5. 8. a type of fabric woven from fax plants
  6. 9. A waterfall
Down
  1. 1. the process by which molten material adds new crust below earths bodies of water
  2. 3. good for growing crops
  3. 5. the process by which crust sinks back into the mantle at a colliding plate boundary
  4. 6. The area near a river mouth where the water deposits fine soil