Why does snow fall? - FamousWhy
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Why does snow fall?

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Why does snow fall? Snow forms when water vapor inside a cloud freezes into tiny crystals. The water vapor usually crystallizes around a tiny dust particle called a nucleus, and the snow crystal continues to grow. Crystals of snow clump together to form snowflakes, which fall from the clouds.

As many as 100 snow crystals group together to form a 2.5 cm snowflake. Snow crystals are very beautiful in form. They are flat and six-sided, and can grow in the shape of elaborate stars.

Glaciers have shaped most of the world's highest mountains, carving out huge valleys. The lakes that are characteristic of mountainous areas are formed from flooded glacial valleys that become dammed by debris as the glacier melts.


Tags: snow, water, crystals



Category: Education  - ( Education Archive)

Date Added: 12 December '11


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