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Learn about clouds
explain cloudsHumidity Relative Humidity Dew pointCloud formation processTypes of cloudsHow do cirrus clouds look likeWhat does a stratus cloud look likeHow does a cumulus cloud look likecontrails lenticular clouds and fogWhat do clouds tell us


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explain how a cloud forms



What is a cloud?


Clouds are the visible water and ice particles floating up in the sky. Tiny water particles turn icy because it is below freezing point up there. Billions of water and ice particles are present in the atmosphere, formed around tiny dust, sooth, smoke and other solid particles. These water particles come together to form a massive body of water droplets. That massive body of moisture held up in the atmosphere is known as clouds. From the earth’s surface, they can be seen in infinite shapes, sizes, textures and colors.

Look up in the sky anytime during the day, and chances are you will find some soft, fluffy patches of white stuff up there. Sometimes on a very sunny day, you feel a sudden shade or shadow pass, because something up in the sky blocked the sun’s rays from hitting you directly. They are clouds that make those shadows.

People who study the atmosphere (including weather and clouds) are called meteorologists. They can tell if a particular cloud will bring rains. By the end of this lesson, you will be able to predict rains by studying clouds too.

The names of clouds often tell us what kind of clouds they are and the altitudes that they are located in the atmosphere. Many of them are Latin names. Can you guess what cloud names mean?

names of clouds

Why are some clouds dark and others white?

Water droplets in the atmosphere reflect sunlight. When there is less water vapor, less light is reflected, and therefore, more light passes through to illuminate the bottom of the cloud. When a cloud is heavily laden with water particles, all the light is reflected (or scattered), and no light is able to pass through it. From the ground, looking up, it looks very dark because there is no light passing through. As clouds become taller, the darker the base becomes.

Clouds are a vital part of the hydraulic cycle. This is because they make up the moisture that ends up as rain (or precipitation) and keep the cycle going.

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CLASSIFICATION OF MATTER | PHOTOSYNTHESIS | FORCES | GENETICS | KINDS OF ENERGY | THE WATER CYCLE
LAND POLLUTION | AIR POLLUTION | WATER POLLUTION | LIGHT POLLUTION | NOISE POLLUTIONECOSYSTEMS | OZONE DEPLETION
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