Natural Disasters

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Across
  1. 2. The scale to measure an earthquake.
  2. 4. A series of very big waves.
  3. 6. The name we give to something that happens because of natural forces.
  4. 9. Whirlwind with speeds of up to 400km. per hour. Also known as twisters.
Down
  1. 1. The line where the plates meet.
  2. 3. The different parts of the crust.
  3. 5. The outside of the earth.
  4. 7. The device used to measure an earthquake.
  5. 8. A sudden movement of the earth.