Download Myth: Rain comes from holes in clouds

Myth: Rain comes from holes in clouds
Jazmin Vogler
Hr.2
Web design
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What causes precipitation (rain and snow)?
Precipitation forms when cloud droplets (or ice particles)
in clouds grow and combine to become so large that their fall
speed exceeds the updraft speed in the cloud, and they then
fall out of the cloud. If these large water drops or ice particles
do not re-evaporate as they fall farther below the cloud, they
reach the ground as precipitation.
Precipitation that does re-evaporate before reaching the
ground is called "virga."
 a cloud must be formed in the atmosphere by warmer
air at the surface rising in to cooler air aloft.
 The water vapor in the air is condensed onto tiny
pieces of dust and collected together to create the
cloud.
 Inside the cloud, swirling winds blow water droplets
around. When the water droplets bump into each
other, they join together.
More facts…
 the droplets become heavy enough and start to fall.
 As they fall to the surface, the droplets gather more
moisture to form even larger raindrops.
 Small raindrops are almost spherical or round in
shape. Larger drops are flattened at the bottom,
resembling a hamburger roll.
Rain clouds
Water/Rain cycle
If the clouds are big
enough and have
enough water droplets,
the droplets bang
together and form even
bigger drops. When the
drops get heavy, they
fall because of gravity,
and you see and feel
rain. When clouds
develop or rain occurs,
something is making the
air rise.
Clouds contain huge numbers of tiny droplets
of moisture. Raindrops are formed when
these tiny droplets are enlarged, first by
moisture from the surrounding air
Clouds are made up of many millions of
condensing on them and then by coalescing
miniscule water droplets which are formed
with other droplets during their descent.
when moist warm air rises up into the sky
and is then cooled down. If the cloud is very
cold it means that it is made up of ice
crystals. It takes somewhere between a few
minutes and 1 hour for a cloud to be created.
Clouds look fluffy and light but the truth is
the amount of water that makes up one
cloud can weigh more then an airplane!
Clouds
When billions of water droplets form the
clouds gets very thick. The sun’s light cannot
shine though so the clouds look gray. Soon
the droplets in the clouds will get too big and
fall from the cloud as rain. That’s why we
know when clouds are gray it’s going to rain
soon.
More about rain
The smaller the drops in a cloud the brighter the tops appear (and
the darker the bases). Smaller droplets scatter more sunlight, while
large drops allow more sunlight to pass through. This explains why
the heavily raining part of a shower cloud or thunderstorm is usually
brighter than just the cloudy part. The cloud droplets have combined
into large raindrops, which allow more sunlight to pass through
them.