Natural Phenomena

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Across
  1. 2. Snow, rocks, ice and more moving rapidly down a slope
  2. 3. Scale used to measure earthquakes
  3. 6. Destructive waves
  4. 7. There are 4 _____
  5. 9. Molten rock
Down
  1. 1. Caused by movement of tectonic plates
  2. 4. The moon turns red when this happens
  3. 5. A fast moving flood
  4. 8. Unstable ground collapsing