Nature Phenomena

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Across
  1. 3. it can be flood, tsunami, lanslide, etc.
  2. 5. it covers the earth and protects us from ultraviolet
  3. 7. a text explaining how something occurs
  4. 8. food processing by using yeast
  5. 10. other name of tape
  6. 11. the last phase of caterpillar life
  7. 13. thing that we must keep
Down
  1. 1. the biggest energy in the universe
  2. 2. a sample of precipitation
  3. 4. when liquid changes into gas
  4. 6. synonim of river
  5. 9. when something happened over and over again
  6. 12. the only planet human can live