Volcanoes

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Across
  1. 3. Single number assigned to an earthquake
  2. 8. Plates that move apart
  3. 10. Supercontinent
  4. 12. Plates that collide
  5. 13. Wave produced by earthquakes or landslides
  6. 14. Break in the rock of Earth's crust
  7. 15. Magma that has reached the surface
  8. 16. Shaking and trembling of Earth
Down
  1. 1. Sleeping volcano
  2. 2. Fastest moving continent
  3. 4. Dead volcano
  4. 5. Plates that move past
  5. 6. Force that changes rocks
  6. 7. Deepest part of the ocean
  7. 9. Molten mixture of rock, gas, and water
  8. 11. Volcanoes that cause immediate threat