CAMDENS CROSSWORD PUZZEL PLATE TECTONIC.

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Across
  1. 2. a weak spot in the crust where magma has come to the surface.
  2. 4. boundary: a plate boundary where two plate move past each other in different directions.
  3. 11. trench: an under valley that represents one of the deepest parts of the ocean.
  4. 12. boundary: a plate where two plates move toward each other.
  5. 13. a giant wave usually caused by an earthquake beneath the ocean floor.
  6. 16. a break in earth's crust along which rocks move.
  7. 17. boundary: a plates boundary where two plates move away from each other.
  8. 18. stress that squeezes rock until it folds or breaks.
  9. 20. the shaking that results from the movement of rock beneath earth's surface.
Down
  1. 1. term used to describe a volcano that is not currently active but able to become active in the future.
  2. 3. a molten mixture of rock forming substances gases and water from the mantle.
  3. 5. the process by which oceanic crust sinks beneath a deep ocean trench and back into the mantle at the convergent plate boundary.
  4. 6. a force that acts on rock to change its shape or volume.
  5. 7. spreading: the process by which molten material adds new oceanic crust to the ocean floor.
  6. 8. spot: an area was magma from deep within the mantle melts the crust above it.
  7. 9. stress that stretches rock so that it becomes thinner in the middle.
  8. 10. stress that pushes masses of rock in opposite directions in a sideways movement.
  9. 14. ridges: an undersea mountain chain where new ocean floor is produced a divergent plate boundary under the ocean.
  10. 15. liquid magma that reaches the surfaces.
  11. 19. the measurements of an earthquake's strength based on seismic waves and movement along faults.