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Clouds are made of very small drops of water of water, ice crystals, and other small particles in the atmosphere (mass of air surrounding Earth). The water comes from condensation, a process that allows small drops of water to form as the air cools. Cloud shapes and the way clouds form give scientists important clues about local weather and conditions in the atmosphere around the world.
Clouds are divided into several types or families of clouds. These families of clouds are named according to where or how they form, and include high-level clouds, middle-level clouds, and low-level clouds. In addition to belonging to a family, clouds are also named for their shape. Puffy clouds are known as cumuliform clouds, and flat sheet-like clouds are known as stratoform clouds.
![Clouds are formed from water in the atmosphere. Joseph Sohm, ChromoSohm Inc./Corbis. Reproduced by permission.](https://d22o6al7s0pvzr.cloudfront.net/images/bookrags/uews/uews_01_img0062.jpg)
How Clouds Form
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This section contains 1,769 words (approx. 6 pages at 300 words per page) |
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