Clouds

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Across
  1. 2. ________ air rises because it is lighter.
  2. 5. There are ____________ basic types of clouds.
  3. 6. Water vapour in rising air _______________ to form clouds.
  4. 8. Cirrus means "______."
  5. 9. Cirrus clouds are at very _______ altitudes.
  6. 10. _____________ clouds are found low in the sky.
Down
  1. 1. Cumulus clouds are also called _____-weather clouds.
  2. 3. Clouds are formed when water vapour condenses as part of the water __________.
  3. 4. the layer of gas that surrounds the Earth
  4. 6. a large collection of very tiny droplets of water or ice crystals
  5. 7. Stratus clouds produce __________ but usually no rain.