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Windshield
Watch
Exploring
Dew and Frost in Your Neighborhood
Did
You Know . . . ? |
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What
do you observe when you pour a glass of iced tea on a hot summer's
day?
(Click
to enlarge photo.)
The air next to the cold glass can't hold as much water vapor
as the warm air does, so it condenses . . . just like dew!
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As
more and more water vapor freezes to form frost, the crystals
grow into interesting patterns!
(Click
to enlarge photo.)
How
could these crystals affect plants and animals?
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You
can find the dew point!
(This is the temperature at which dew will form.) Here's how:
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Fill
a glass jar half way with water.
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Measure
the water temperature.
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Slowly add ice cubes; stir gently with the thermometer.
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When you see "dew" (condensation) on the outside of
the jar, record the water temperature.
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That is the approximate dew point at that time in your environment.
Is it close to what this Weather
Channel Map reports?
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2006 Journey North. All Rights Reserved.
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