Question:

Where does Dew come from?

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When I walk on the grass in the morning I always wonder.

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  1. Dew comes  from the moisture contained in the air near the surface.Dew is nothing but water in the form of water droplets that appear on thin,exposed,non-metallic objects near the surface  in the evening or morning.Water droplets result due to  the condensation of moisture at a rate greater than  that which it can evaporate.


  2. there is always moisture in the air and when the sun rises, the sun condenses the water and it falls on the grass and plants,

    PS it comes after night because it gets cold and damp at nigth

  3. The air always abosrbs moisture, but air can only hold a certain amount amount of moisture at a certain temperature. Warmer air can always hold more moisture than cooler air, if the temperature drops, then the air iar can hold less moisture. If it drops past what is called the "dew point" then the air must release some of the moisture that it is holding in the form of either fog or dew. The Dew point is the temperature at which air must release moisture at a given temperature and humidity

  4. Dew is water in the form of droplets that appears on thin, exposed objects in the morning or evening. As the exposed surface cools by radiating its heat, atmospheric moisture condenses at a rate greater than that of which it can evaporate, resulting in the formation of water droplets.

    When temperatures are low enough, dew takes the form of ice; this form is called frost.

    Because dew is related to the temperature of surfaces, in late summer it is formed most easily on surfaces which are not warmed by conducted heat from deep ground, such as: grass, leaves, railings, car roofs, and bridges.

    Water will condense into droplets depending on the temperature. The temperature at which droplets can form is called the Dew Point. When surface temperature drops, eventually reaching the dew point, atmospheric water vapor condenses to form small droplets on the surface. This process distinguishes dew from those hydrometeors (meteorological occurrences of water) which are formed directly in air cooling to its dew point (typically around condensation nuclei) such as fog or clouds. The thermodynamic principles of formation, however, are virtually the same.


  5. It is caused when moisture from the atmosphere settles on the grass. When the temperature drops to a low enough temperature, the air cannot hold the moisture so the ground collects the moisture in the form of condensation.  

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