science

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Across
  1. 3. A device that determines the distance of an object under water.
  2. 8. The transfer of energy through empty space.
  3. 9. The process by which oceanic crust sinks beneath a deep-ocean trench.
  4. 10. The amount of mass in a given space.
  5. 11. The process by which molten material adds new oceanic crust.
  6. 12. The transfer of heat by direct contact.
  7. 13. The name of the single land mass.
  8. 14. The movement of energy from a warmer object to a cooler object.
Down
  1. 1. The undersea mountain chain where new ocean floor is produced
  2. 2. The transfer of heat by movement.
  3. 4. The movement of a fluid.
  4. 5. A deep valley along the ocean floor.
  5. 6. The hypothesis that the continents slowly move.
  6. 7. A trace of an ancient organism that has been preserved in rock.