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What are clouds?
A cloud is a large collection of very tiny
droplets of water or ice crystals. The droplets are so small and light
that they can float in the air.
How are clouds formed?
All air contains water, but near the ground it is
usually in the form of an invisible gas called water vapor. When warm
air rises, it expands and cools. Cool air can't hold as much water
vapor as warm air, so some of the vapor condenses onto tiny pieces of dust
that are floating in the air and forms a tiny droplet around each dust
particle. When billions of these droplets
come together they become a visible cloud.
Why are clouds white?
Clouds are white because they reflect the light
of the sun. Light is made up of colors of the rainbow and when you add
them all together you get white. The sun appears a yellow color because
it sends out more yellow light than any other color. Clouds reflect
all the colors the exact same amount so they look white.
Why do clouds turn gray?
Clouds are made up of tiny water droplets or ice
crystals, usually a mixture of both. The water and ice scatter all
light, making clouds appear white. If the clouds get thick enough or
high enough all the light above does not make it through, hence the
gray or dark look. Also, if there are lots of other clouds around,
their shadow can add to the gray or multicolored gray appearance.
What makes it rain?
In summer or sunny days the sun heats up Earth
and the water of oceans and rivers, water turns into vapor. When
the vapor rises it turns into the water droplets, which forms
clouds. The droplets growing Continuously until they are so heavy that they
fall to the ground in the form of rain. In this way, the same water
evaporates and turns into rain again and this cycle continue . This is
also known as the water cycle.
 
At the time of rain, air rise. Several things can
make this happen.
Mountains, low-pressure areas, cold fronts, and
even the jet stream.
The rain fall is measured with the help of Rain
Gauge in mm (Millimeter)
units.
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Rain
and Clouds
