natural disasters

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Across
  1. 1. how natural disasters happen.
  2. 5. or volcanic eruptions.
  3. 7. mountains that have openings at the top. Sometimes, they
  4. 8. powdery substance that comes from a volcano when it explodes.
  5. 9. Disasters
  6. 11. are powerful and destructive events that happen
Down
  1. 2. and spit out hot melted rocks called lava.
  2. 3. outer layer of the Earth, like the thin skin on an apple.
  3. 4. disaster of uncontrolled accidental fire
  4. 6. waves that happen in the ocean, often caused by
  5. 7. of forces in nature.They can cause a lot of damage to the environment and can be very dangerous.
  6. 10. the ground shakes and moves because of the Earth's powerful movements deep underground.