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Condensation
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<p>Condensation is the change of the <a href="/facts/State_of_matter/ojlIA1UF">state of matter</a> from the <a href="/facts/Gas/hVVAoodV">gas phase</a> into the <a href="/facts/Liquid/t9GkLWzt">liquid phase</a>, and is the reverse of <a href="/facts/Vaporization/0Uxpy1WQ">vaporization</a>. The word most often refers to the <a href="/facts/Water_cycle/wALHdKjJ">water cycle</a>. It can also be defined as the change in the state of water vapor to liquid water when in contact with a liquid or solid surface or <a href="/facts/Cloud_condensation_nuclei/8u5mVsFR">cloud condensation nuclei</a> within the <a href="/facts/Earth%27s_atmosphere/FV97Am25">atmosphere</a>. When the transition happens from the gaseous phase into the solid phase directly, the change is called <a href="/facts/Deposition_(phase_transition)/JweT4Eqs">deposition</a>. Condensation is usually associated with water. </p>