plate tectonics

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Across
  1. 2. ‐ Part of a grid used for describing positions on earth’s surface, consisting of parallel circles
  2. 4. Zone ‐ An area where oceanic crust and continental crust are colliding.
  3. 7. ‐ The point of origin of an earthquake
  4. 8. ‐ The thick shell of dense, rocky matter that surrounds the earth’s core.
  5. 9. Core ‐The innermost layer of the earth, an extremely hot, solid sphere of mostly iron and nickel
  6. 10. Core ‐ This layer of the earth lies between the mantle and the solid inner core.
  7. 11. ‐A dropped zone where two tectonic plates are pulling apart
Down
  1. 1. ‐ A deep valley that forms at the edge of a continent when an oceanic plate sinks underneath a
  2. 3. Scale ‐ A logarithmic scale, ranging from 1 to 10, for indicating the intensity of an earthquake
  3. 5. plate.
  4. 6. ‐ Any of various instruments for measuring and recording the vibrations of earthquakes