Fast Changes

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Across
  1. 4. Severe snowstorm
  2. 5. Funnel-shaped cloud with high wind
  3. 7. Core Very center of the earth
  4. 11. Prolonged period of low rainfall
  5. 12. Sudden and violent shaking of the ground
  6. 14. Tropical cyclone with high winds and heavy rain
  7. 15. Core liquid layer of the earth
  8. 16. Hot fluid from which lava is formed
  9. 17. Electrical discharge between a cloud and the ground
  10. 19. Crack in the Earth's crust
Down
  1. 1. Mountain or hill with a vent through which lava erupts
  2. 2. Overflowing of large amounts of water
  3. 3. Sliding down of a mass of earth or rock
  4. 6. Thin shell on the outside of the earth
  5. 8. Plates massive slab of rock
  6. 9. Large, bowl-shaped cavity or hole
  7. 10. Wear away or change the appearance of something
  8. 13. Gradual destruction
  9. 14. Frozen rain
  10. 18. Long, high sea wave caused by an earthquake