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You are here: Home / Universe / Does Dew Fall?

Does Dew Fall?

May 7, 2020 by Karen Hill

Ever since ancient times, people have been saying that dew “falls,” but it’s not true. Dew forms where you find it, on plant leaves, not in the clouds. This is how it happens:

At night, the air gradually cools off. Cool air holds less water than warm air, so that when the temperature of the air drops to a certain point, water in the air begins to condense wherever the air meets a cool surface. Plant leaves, which also lose heat at night, are cool enough before morning so that dew will condense on them.

But some of the large dewdrops you see on a plant during the day are given off by the plant itself, to keep its leaves cool and moist.

When moisture condenses on the ground in the form of ice instead of water, it’s called hoarfrost.

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  • What Is Guttation, What Causes Guttation To Form, and What Is the Difference Between Guttation and Dew?
  • Where does the phrase "to fall between two stools" come from and What does it mean?
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Filed Under: Universe

About Karen Hill

Karen Hill is a freelance writer, editor, and columnist. Born in New York, her work has appeared in the Examiner, Yahoo News, Buzzfeed, among others.

Previous Post: « Can It Ever Be Too Cold To Snow?
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