DEW FORMATION
What is a dew?
• Dew is water in the form of droplets that appears on
thin exposed objects in the morning or eveninf due to
condensation.
• As the exposed surface cools by radiating its
heat,atmospheric moisture condenses at a rate greater
than at which it can evaporate,resulting in the
formation of water droplets.
• The temperature at which dew forms is called dew
point. If a surface cools below the dew point, water
condenses on the surface and dew drops are formed.
How does it form?
• Dew forms as temperature drop and object cools
down.
• If the object becomes cool enough, the air around
the object will also cool.
• This forces water vapor in the air around objects to
condense. When condensation happens, small
water droplets form - dew.
• The dew formation is more when the sky is clear
and less when it's cloudy
• The temperature at which dew forms is called dew
point. If a surface cools below the dew point, water
condenses on the surface and dew drops are
formed.

DEW FORMATION-WPS Office.pptx

  • 1.
  • 2.
    What is adew? • Dew is water in the form of droplets that appears on thin exposed objects in the morning or eveninf due to condensation. • As the exposed surface cools by radiating its heat,atmospheric moisture condenses at a rate greater than at which it can evaporate,resulting in the formation of water droplets. • The temperature at which dew forms is called dew point. If a surface cools below the dew point, water condenses on the surface and dew drops are formed.
  • 5.
    How does itform? • Dew forms as temperature drop and object cools down. • If the object becomes cool enough, the air around the object will also cool. • This forces water vapor in the air around objects to condense. When condensation happens, small water droplets form - dew. • The dew formation is more when the sky is clear and less when it's cloudy
  • 6.
    • The temperatureat which dew forms is called dew point. If a surface cools below the dew point, water condenses on the surface and dew drops are formed.