Tectonic Plates

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Across
  1. 3. rigid outer layer of the Earth
  2. 5. occurs when 2 tectonic plates collide, and 1 plate moves under the other and sinks into the mantle
  3. 6. boundary where 2 tectonic plates move away from each other in opposite directions
  4. 8. molten rock caused by plate tectonics and convection currents in the mantle
  5. 9. boundary when two plates slide past each other
Down
  1. 1. shaking of the ground that occur when two plates suddenly slide past one another
  2. 2. the amount per unit size
  3. 4. boundary where tectonic plates come together or converge or develop
  4. 7. vents in the Earth's crust through which molten rock, gases, and steam escape to the surface
  5. 10. valley that occurs in divergent boundaries