What is snow? Detailed answer

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What is snow? Detailed answer

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What is snow?

Snow is nothing but frozen water. However, in that case, why doesn't it look like ice? The fact is that snowflakes are actually made of small ice crystals, and because the light reflects off their many facets, the snowflakes appear white instead of transparent.

Snow is formed when water vapor in the atmosphere freezes. At first, tiny crystals appear, clean and transparent. Following the air currents, they move in the air in all directions. Gradually, these crystals "stick" to each other until there are a hundred or even more of them. When the size of the frozen ice floes is large enough, they begin to slowly sink to the ground. These accumulations of ice floes are what we call snowflakes.

Some of the ice crystals are needle-shaped, others are flat, but in any case, each of them has 6 faces. It is curious that the arrangement of snowflakes is exactly the same. However, at the same time, it is impossible to find two snowflakes with exactly the same pattern. Did you know that snow isn't always white? In many regions of the world, people have seen it red, green, blue and even black!

The reason for this variety of colors are tiny bacteria, fungi, and dust in the air that are absorbed by snowflakes as they fall to the earth's surface.

Since there are large gaps of air in the snow between individual snowflakes, it does not conduct heat well. That's why a snow "blanket" can protect plant roots from frost. The same property of snow is used by the Eskimos, who build their own dwelling from it - an igloo.

Author: Likum A.

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