where do the clouds come from ?

Question

i'm only 8 ,be nice

Answer 1

read your geography book!

A cloud is defined as 'a visible aggregate of minute droplets of water or particles of ice or a mixture of both floating in the free air'. Each droplet has a diameter of about a hundredth of a millimetre and each cubic metre of air will contain 100 million droplets. Because the droplets are so small, they can remain in liquid form in temperatures of -30 °C. If so, they are called supercooled droplets.

Clouds at higher and extremely cold levels in the atmosphere are composed of ice crystals ≬ these can be about a tenth of a millimetre long.

Clouds form when the invisible water vapour in the air condenses into visible water droplets or ice crystals. For this to happen, the parcel of air must be saturated, i.e. unable to hold all the water it contains in vapour form, so it starts to condense into a liquid or solid form. There are two ways by which saturation is reached.

(a) By increasing the water content in the air, e.g. through evaporation, to a point where the air can hold no more.

(b) By cooling the air so that it reaches its dew point ≬ this is the temperature at which condensation occurs, and is unable to 'hold' any more water. Figure 1 shows how there is a maximum amount of water vapour the air, at a given temperature, can hold. In general, the warmer the air, the more water vapour it can hold. Therefore, reducing its temperature decreases its ability to hold water vapour so that condensation occurs.

Answer 2

You can make clouds at home - just boil the kettle (or get an adult to!) and watch what happens to the steam - you get a cloud! Another time when you get steam is when you have a nice, hot bath on a cold day. Steam is formed more quickly and easily when you have a shower because the water is already in droplets.

Have you noticed that you get more steam when it is cold than when it is hot? When you go outside when it is cold, you can see your breath. That is also a cloud. Basically, a cloud is formed when hot air and cold air meet. The water in the air condenses (ie, the water in the air comes out) and forms clouds.

Believe it or not, fog, clouds and dew are all formed the same way. The dew forms when the warm air meets the cold ground and the water comes out of the air. Frost is frozen water, but forms the same way.

I am now copying this from a children's book I got when I was about your age - and now my children use it!

"There is always water vapour in the air. During the summer, there is more of this vapour in the air because the temperature is higher. (me: hot air will hold more water than cold air) When there is so much water vapour in the air that just a small reduction in temperature will make the vapour condense - form tiny droplets of water - we say the air is saturated (me: ie the air will hold no more water)

It only takes a slight drop in temperature to make water vapour condense in saturated air. So when satuarated warm air rises to an altitude where the temperature is lower, condensation takes place and we have a cloud. The molecules of water have come together to form countless little droplets.

What happens if all these water droplets in a cloud meet a mass of warm air? They evaporate - and the cloud disappears! This is why clouds are constantly changing shape. The water in them is changing back and forth from vapour to liquid."

I hope this helps!

Good luck - and there is not much that is a silly question when you are only 8! You only learn things by asking!

Answer 3

Clouds are made of condensed water vapour. If you were inside a cloud it would be the same as if you were in a fairly dense mist. Mist, fog and clouds are all made of this same stuff - water droplets floating in the air.
Water vapour is normally present in the air but when the temperature drops this vapour collects together to form tiny drops, and so form clouds. If the drops keep on clumping together the get too heavy to carry on floating and so they fall to the ground - we call that rain.
Hope this helps.

Answer 4

moisture of water vapor in the air under right conditions, usually temperature, will condense to form clouds. When the moisture content of the clouds becomes saturated enough relative to ambient conditions such as pressure and temperature, water droplets will form around some object like a dust mote and either fall to the ground as rain, or if cold enough as snow. Or, in the right weather conditions, it will form a drop of water, fall a little, be blown back by an updraft where it freezes, fall again, blown back up again adding more layers of ice until the updraft is not sufficient to lift it and it will then fall to ground as hail.

Answer 5

CLOUDS ARE FORMED BY THE LIFTING OF DAMP AIR WHICH COOL BY EXPANSION AS IT ENCOUNTERS THE LOWER PRESSURES EXISTING AT HIGHER LEVELS IN THE ATMOSPHERE. THE RELATIVE HUMIDITY INCREASES UNTIL THE AIR BECOMES SATURATED WITH WATER VAPOUR,THEN CONDENSATION OCCURS ON ANY OF THE AEROSOL PARTICLES SUSPENDED IN THE AIR.
A WIDE VARIETY OF THESE EXIST IN CONCENTRATION RANGING FOR ONLY A FEW PER CUBIC CENTIMETR IN CLEAN MARITIME AIR TO PERHAPS 1,000,000 PER CUBIC CENTIMETERS(16,000,000 PER CUBIC INCH) IN THE HIGHLY POLLUTED AIR OF AN INDUSTRIAL CITY FOR CONTINOUS CONDENSATION LEADING TO THE FORMATION OF CLOUD DROPLETS.

Answer 6

Water evaporated into water vapour, which rose into the sky, as it is very cold there, it condensed into water droplets, thus forming clouds.

Answer 7

clouds come from water vapor after going through the water cycle and changing from gas to liquid and cooling I go to North Star downtown CAMPUS

Answer 8

from the water down below

Answer 9

cloud is water i fink

Answer 10

http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/cldtyp/home.rxml