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 Blog Entries
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 How do clouds form? Clouds form when moist air and cold, dry air combine. There are three components are necessary for clouds to form: water vapor, cool or cold air, and condensation nuclei. Condensation nuclei are particles of dust or dirt that are in the air. This dust might come from volcanoes, cars, or fires. The water vapor comes from water evaporating anywhere on the earth’s surface. The cold or cool air comes from how high the clouds form.
Article posted February 12, 2011 at 11:54 AM • comment (2) • Reads 1370 • Return to Blog List Add a CommentPosted Comments  Nice Thomas! Cool equation! I didn't know that dust really came from volcanoes! NIce work!
Comment Posted on February 14, 2011 at 08:19 PM by
Isabel WI like ur blog! Nice job(:
Comment Posted on February 14, 2011 at 04:41 PM by
Avital B |
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