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When the temperature of the leaf (or any other surface, for that matter) drops below the dewpoint of the surrounding air, water will condense on it. If the dewpoint is below freezing, the water will condense directly into a solid, otherwise known as frost. Something interesting is that the a surface can be colder than the surrounding air, because under the right circumstances it can be cooled by radiation to the sky. Dew formation causes release of significant amounts of latent heat, warming the surface and the surrounding air. As the night begins the temperature can drop rapidly through radiative cooling of the ground, but once dew starts to form the rate of temperature decrease drops dramatically. Therefore, on a fairly clear night with no frontal passage, the dewpoint the evening before is a pretty good prediction of the low temperature the next morning.

Answer In addition to the above, plants also exude moisture which will form droplets on the leaves in the morning, especially when humidity is high. This is called guttation and can be confused with dew (and both phenomena can occur at the same time).

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โˆ™ 2009-04-01 06:37:47
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Q: What causes dew to form on plant leaves?
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Related questions

What causes dew to form on plant leaves during a cool night?

The weather change.


Which part of the water cycle does dew form?

Condensation causes dew to form.


What does dew do?

Dew over time sinks into the leaves of the plant and works to slowly decompose it until it wilts and dies.


What causes dew to form?

You Figure it out wicked good yaself bub!


Dew in a sentence?

the dew drops on the leaves look cool.


What processes in the water cycle causes dew to form in the morning?

"Condensation"Condisation


What process in the water cycle causes dew to form?

Condensation


Is dew a form of condensation?

Yes, dew is a form of condensation.


Were does monkeys get their water?

they get it from leaves and dew


Why can water form gases in the early morning when the air is clear?

Condensation of water vapor causes dew.


How is dew point related to saturation?

Saturation causes Dew Point


How do you use dew ow in a sentence?

the dew on the plant was looking funny


Under what conditions would dew not form?

Dew does not form damp and wet conditions.


What are the advantages of dew?

Keep leaves wet


What causes clouds to form on the windward side of a mountain?

Air is forced to rise as it hits the mountain, which causes it to cool adiabatically to its dew point and condense into clouds.


Can dew water the plants?

No, the dew is not enough to get the job done. The roots needs a good drink. Dew only really mists the leaves.


What causes dew to form on the ground?

At night, the lack of solar radiation causes surfaces on the Earth to cool. If the surface is significantly cooler than the ambient air temperature, dew will form. Specifically, a parcel of warm and moist air in contact with the cooler ground will have its temperature reduced to the "dew point temperature". Once air reaches the dew point temperature, saturation is reached and the gaseous water in the air is able to condense back to its liquid form. If the surfaces are below freezing, the water vapor will change phase directly to the solid form (ice). This is called frost.


Why does dew form on grass overnight?

Dew forms on grass overnight because of condensation. When there is warm and and a cold ground, the water vapor in the air condenses, which causes the dew on the ground. At night, the air is much cooler, which makes the dew on the ground.


At what point does dew form?

Dew forms at the dew point of the vapour phase of the substaance in question.


In what type of environment is dew NOT likely to form?

Well dew is a form of condensation. That being said a dry climate is less likely to produce dew.


What causes dew?

Dew is formed when moisture in the atmosphere condenses on cool surfaces at night.


Does dew form in the fall season?

Dew can form in any season but it generally most common in the fall.


Do clouds form at the dew point?

Yes, clouds form at the dew point. The higher the dew point, the more clouds will form. When there are a lot of heavy clouds in an area, there is a better chance of precipitation.


How do chameleons drink water in the wild?

Chameleons spend their entire life in the trees and very rarely venture onto the ground. They get their water by licking dew drops that form on the leaves at dawn or by drinking drops of rain water that form on leaves and branches.


How are dew and frost different?

Dew is a liquid form where is frost is frozen dew. So frost is dew only in the frozen version not liquid.