science puzzle

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Across
  1. 4. a wispy white cloud
  2. 5. water that falls from the sky
  3. 7. forbidden to fly in this cloud
  4. 8. Morning condensation
  5. 9. a large dark low cloud
  6. 10. really slippery
  7. 12. Humans can't breathe with out it
  8. 13. used to measure the speed or velocity of gases
  9. 14. cloud condenses at ground level
Down
  1. 1. generally signal good weather
  2. 2. measure humidity
  3. 3. predict the weather
  4. 6. Atomic number 7 in the periodic table
  5. 10. white and frozen
  6. 11. to measure or test