Plate Tectonics

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Across
  1. 1. a vent in a planet's crust from which molten or hot rock and steam come out
  2. 4. the solid outer surface of the Earth
  3. 7. the crustal plate located beneath the ocean
  4. 10. the process of crustal plate movement
  5. 11. plates in the Earth's crust that hold the continents
  6. 14. melted rock that rises from the mantle and lies beneath the surface
  7. 15. points at which the Earth's crust cracks
Down
  1. 2. the slow process of the Earth's continents moving as the Earth's plates shift
  2. 3. the ring of volcanoes along the edges of the continents that border the Pacific Ocean
  3. 5. the large slabs of rock that make up the Earth's crust
  4. 6. the semi-solid layer of the Earth between the outer and the outer core
  5. 8. liquid rocck that reaches the surface
  6. 9. an underwater mountain range that zigzags between all the continents
  7. 11. the innermost layer of the Earth, made up of a liquid outer core and a solid inner core
  8. 12. extremely deep areas where two plates meet and one slides under the other
  9. 13. a single continent made up of all of the Earth's land mass long ago