chapter 1 crossword review

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Across
  1. 5. liquid-gas
  2. 8. height from sea level
  3. 9. liquid-solid
  4. 11. clouds, wind, air
  5. 13. gas-liquid
  6. 14. ice and glaciers
  7. 16. height from lowest to highest point
Down
  1. 1. the earth's layers
  2. 2. all the living things on earth
  3. 3. height from sea level
  4. 4. main source of energy for the water cycle
  5. 6. how salty something is
  6. 7. feedback slowing something down
  7. 10. plant sweat
  8. 12. all the water on earth
  9. 15. feedback speeding something up