Crossword Puzzle of Internal Forces Shaping the Earth

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Across
  1. 2. A fracture on the earths crust.
  2. 5. of Fire A zone around the rim of the pacific ocean, is the location of the vast majority of active volcanoes.
  3. 7. Plate Enormous moving pieces on the earths lithosphere.
  4. 8. Occurs when plates grind or slide past each other making the earth tremble.
  5. 10. Boundary Plates collide, causing either one plate to dive under the other or the edges of both plates to crumble.
  6. 12. A crack in the earths surface through which magma comes out.
  7. 13. Magma that has reached the earths surface.
Down
  1. 1. The point directly above the focus of the earths surface.
  2. 3. A giant wave in the ocean.
  3. 4. Scale Uses information collected from he seismograph to determine the relative strength of a earthquake.
  4. 6. Detects earthquakes.
  5. 9. Boundary Plates move apart, spreading horizontally.
  6. 11. Boundary Plates slide past each other.