How are clouds formed and what are they made of?

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    Lv 6
    1 decade ago
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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.

    Why do clouds float?

    A cloud forms when air heated by the sun. As it rises, it slowly cools it reaches the saturation point and water condenses, forming a cloud. As long as the cloud and the air that its made of is warmer than the outside air around it, it floats!

    How do clouds move?

    Clouds move with the wind. High cirrus clouds are pushed along by the jet stream, sometimes traveling at more than 100 miles-per-hour. When clouds are part of a thunderstorm they usually travel at 30 to 40

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  • 1 decade ago

    Clouds are made up of very tiny water droplets. They form when water in the atmosphere that evaporates from water sources like lakes and ocean, or when water transpires from plant leaves.

    At certain temperatures, the water will remain gaseous. However, as you go higher, the temperature decreases, and the water condenses into very small droplets, so small that they will not fall. That is why the bottom of clouds is so often flat. The temperature decreases in a smooth gradiant. At some point the air is too warm for the droplets to condense, and then suddenly, a few meters higher, it is cold enough.

    That is why fogs form when it is cool. Fog is a cloud down here where we can touch it.

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  • 1 decade ago

    Clouds are formed when the heat from the sun causes water in the sea, rivers or lakes to evaporate and rise into the atmosphere; Thus the clouds consist of water vapour. When the clouds meet with a change in temperature or atmospheric pressure, the vapour changes into water and falls as rain onto your garden party or family picnic.

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  • 1 decade ago

    They are formed when water in the earth evaporates and becomes water vapor, the water vapor then rises into the air and as it goes higher the air becomes colder, so the water vapor dropets cluster together to form a cloud. In the cloud the vapor condenses and becomes thick and heavy.

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  • 1 decade ago

    They are generally formed by relatively warm humid air rising and then cooling off. When it cools, the ability of the air to "hold" the water vapor diminishes, and then the water condenses out into a mist, which is a cloud. If it gets even colder, then the mist will further condense and actually precipitate into drops of water or ice, and then we get rain or snow. That's why they call rain precipitation.

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  • 1 decade ago

    Clouds are formed when water collects in the atmosphere, clouds are made out of water vapor...

    http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/c...

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