It is winter. Snow and ice transform the landscape into a fairy tale scenery. At sub-zero temperatures, ice crystals form on branches and other objects.\u00a0
\nThe snow cover is not always uniform but sometimes shows varied structures of snow and ice crystals as well.
\nSnow is frozen rain, that is, precipitation falling from the clouds. Clouds, in turn, consist of gaseous water vapour which transforms into precipitation in certain conditions.
\nWhere the sun shines and temperatures rise again, snow and ice begin to melt. Thaw sets in, and snow and ice change into water again. But snow and ice can also exist simultaneously.\u00a0
\nEven at high minus temperatures, streams and rivers still carry water. On their banks, exciting ice formations can develop as a result.\u00a0
\nStagnant waters, such as lakes and ponds, however, tend to freeze because the water in them hardly moves.
\nThe solid, liquid and gaseous states are the three classic aggregate states. We encounter the interplay between water vapour, liquid water and ice in many situations.\u00a0
\nComplex physical processes lie behind it. Let us take a closer look at them now.<\/p>\n","protected":false},"excerpt":{"rendered":"
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