Plate tectonic

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Across
  1. 4. boundary A tectonic boundary where two
  2. 6. zone The boundary area where this occurs is the subduction zone.
  3. 7. plate gigantic pieces of the Earth's crust and uppermost mantle
  4. 8. are moving away from each other and new crust is forming
  5. 9. long, narrow depressions on the seafloor that form at the boundary of tectonic plates where one plate is pushed, or subducts, beneath another.
  6. 10. currents a process that involves the movement of energy from one place to another.
Down
  1. 1. boundary A geologic process in which one edge of one lithospheric plate is forced below the edge of another.
  2. 2. are the shaking, rolling or sudden shock of the earth's surface.
  3. 3. boundary A tectonic boundary where two plates are moving toward each other.
  4. 5. of Fire a string of volcanoes and sites of seismic activity, or earthquakes, around the edges of the Pacific Ocean.