Plate Tectonics

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Across
  1. 4. tending to move toward one point or to approach each other
  2. 6. Liquid layer of the Earth that is the second largest
  3. 8. a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth’s crust
  4. 9. the outer layer of the Earth
  5. 10. a vent in the Earth’s crust through lava, steam, ashes, etc, are expelled
Down
  1. 1. moving or extending in different directions from a common point
  2. 2. a solid ball of metal and the densest layer of the Earth
  3. 3. Largest layer of the Earth
  4. 5. a natural elevation of the Earth's surface rising more or less abruptly to a summit, and attaining an altitude greater than that of a hill
  5. 7. to push on each other in different directions