Condensation clouds

What is condensation?

Water vapor in the air gets cold and changes back into liquid, forming clouds. This is called condensation.

Condensation causes clouds. Even though clouds float, the fact is that clouds actually weigh tons.  Clouds do "fall" on you, sometimes, when it is foggy. Fog develops when air has a high humidity content (moist) comes in contact with a colder surface, often the Earth's surface, and cools to the dew point. Additional cooling leads to condensation and the low-level clouds develop.

Try this...

glass of water Pour a glass of cold water on a hot day and watch what happens.  Water forms on the outside of the glass.  That water didn't somehow leak through the glass, it actually came from the air.  Water vapor in the warm air, turns back into liquid when it touches the cold glass.


[msti 260] [the water cycle] [evaporation] [precipitation] [runoff] [percolation] [glossary]