What is Condensation?
Water molecules are busy dancing around all the time. But the dance really gets interesting when you add heat to them.
The hotter molecules get, the faster they move, turning from water to steam. And when liquid water turns to gas, not only do the molecules move really fast, but they get spaced so much farther apart that they generate pressure by pushing on everything they come into contact with. Take the heat away from that steam, and it becomes liquid water again. This is called condensation.
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