Water cycle By michael dedominicis

Clouds form when rising air through expansion cools to the point where some of the water vapor molecules clump together faster than they are torn apart by their thermal energy.
Humidity is the amount of water vapor present in the air. Water vapor is the gaseous state of water and is invisible.
Cirrus is a genus of atmospheric cloud generally characterized by thin, wispy strands, giving the type its name from the Latin word cirrus, meaning a ringlet or curling lock of hair.
Stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuliform clouds that are formed by rising thermals.
Cumulo- means heap or pile in Latin. Cumulus clouds are often described as puffy cotton like or fluffy in appearance, and have flat bases.
Nimbostratus is a former "Family C" low-level stratiform genus that is now classified by the World Meteorological Organization as a vertical or multi-level stratus type because it forms in the middle
Liquid water in the form of droplets that have condensed from atmospheric water vapor and then precipitated.
Snow pertains to frozen crystalline water throughout its life cycle, starting when it precipitates from clouds and accumulates on surfaces, then metamorphoses in place, and ultimately melts, slides or sublimates away
pellets of frozen rain that fall in showers from cumulonimbus clouds
Density
Density is what drives the water cycle. Clouds get full and have a lot of density so rain falls.

Credits:

Created with images by mlipsky2013 - "cirrus clouds blue sky sky" • cletch - "Commerce Township Clouds" • Hans - "clouds sky blue" • Rohvannyn - "cloud wind sky" • ChristopherPluta - "rain after the rain a drop of" • Cristiana Bardeanu - "Snow" • GlennFleishman - "Hail on Chairs"

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