Why do clouds fly in the sky, and why do clouds float in the sky?

Because clouds are the embellishment of the sky, no cloudy sky is too monotonous.

Clouds floating in the sky are made up of many tiny water droplets or ice crystals, and some are made up of small water droplets or Xiaoice crystals mixed together. Sometimes it also contains some large raindrops, ice and snow particles, and the base of the cloud does not touch the ground and has a certain thickness.

Cloud formation is mainly caused by condensation of water vapor.

In this layer of the atmosphere more than ten kilometers from the ground, the closer to the ground, the higher the temperature and the denser the air; The higher you go, the cooler the temperature and the thinner the air.

On the other hand, the water surface of rivers, lakes and seas, as well as the water of soil, animals and plants, evaporates into the air at any time and becomes water vapor. When water vapour enters the atmosphere, it becomes clouds that cause rain, or condenses into frost and dew, and then returns to the ground, seeping into the soil or flowing into rivers, lakes and seas. Later, it evaporates (sublimation) again, and then condenses (condensation) and declines.

The cycle goes on and on.

After the water vapor enters the lower atmosphere from the evaporation surface, the temperature here is high, and the water vapor contained is more, and if this hot and humid air is lifted, the temperature will gradually decrease, and at a certain height, the water vapor in the air will reach saturation. If the air continues to be lifted, excess water vapor will be precipitated. If the temperature there is higher than 0°C, the excess water vapor condenses into small droplets; If the temperature is below 0 °C, the excess water vapor condenses into Xiaoice crystals.

When these small water droplets and Xiaoice crystals gradually increase to the point where the human eye can recognize them, they are clouds.

Clouds floating in the sky are made up of many tiny water droplets or ice crystals, and some are made up of small water droplets or Xiaoice crystals mixed together. Sometimes it also contains some large raindrops, ice and snow particles, and the base of the cloud does not touch the ground and has a certain thickness.

But if you're explaining to a child, you're simply saying that liquid water evaporates and floats up into the air, and the air currents down there.

There are answers to 100,000 whys.

Clouds float up by absorbing heat, the air is transparent, sunlight passes directly, so the air hardly absorbs heat; The cloud is translucent, and it absorbs heat from the sun.

Because of the difference in heat absorption, the air in the clouds is hotter than the surrounding air. The higher the temperature of the air, the less dense it becomes, just like the principle of a hot air balloon: air expands and contracts.

Every cloud is a hot air balloon, and the water vapor is the passengers carried by the hot air balloon. High in the air, the density of the gas decreases, and when the clouds rise to a height as dense as themselves, they are suspended in the air.

Everyone knows that clouds are composed of water vapor condensed into small water droplets with dust as the core, and the uneven refraction of light by the water droplets makes the clouds not completely transparent, a cloud with a volume of 1 2 cubic kilometers can have a mass of several tons, but because the volume of the cloud is very large, it is subject to great buoyancy, and the flow of air produces an updraft that supports the cloud, so it does not.

The clouds in the sky are formed by the accumulation of water vapor, and the weight will fall when it reaches a certain level, so the black clouds indicate that it is going to rain, and that is because the weight is large, just like thunder in the sky, the positive ions and negative ions in the sky meet, and electricity will be formed, and then lightning and thunder, why do you see lightning first and then hear the sound, it is because of the speed of light propagation.

Anything in space is floating in the sky, the earth has gravity, and the clouds are light.

Water vapor enters the lower atmosphere from the evaporation surface, where the temperature is high, and if this hot and humid air is lifted, the temperature will gradually decrease, and at a certain height, the water vapor in the air will reach saturation.

If the air continues to be lifted, excess water vapor will be precipitated. If the temperature there is higher than 0, the excess water vapor liquefies into small droplets; If the temperature is below 0, the excess water vapor condenses into Xiaoice crystals. When these small water droplets and Xiaoice crystals gradually increase to the point that the human eye can recognize, the said cloud is formed.

Color analysis of clouds:

The sky was full of clouds of different colors, some white as flocculent, some as black as black, some gray as grey, and some as red and purple. Here, the thickness of the clouds determines the color, and the thickness of the various clouds we see varies greatly, with a thickness of up to 7-8 kilometers and a thin one of only a few tens of meters. There are many types of stratiform clouds, solitary cumulinary clouds, and undulating clouds.

Very thick stratiform clouds, or cumulonimbus clouds, where the light of the sun and moon is difficult to penetrate, and the clouds appear very dark; Slightly thinner stratiform and undulating clouds, which appear gray, especially undulating clouds, with more grayish colors at the edges of the clouds;

Very thin clouds, light is easy to pass through, especially thin clouds composed of ice crystals, the filaments appear particularly bright in the sun, with a silky luster, and even if there are such stratiform clouds in the sky, ground objects will still reflect shadows in the light of the sun and the moon. Sometimes the clouds are so thin that they are barely visible, but as long as one or several large rings are found near the sun and moon, it can still be concluded that there are clouds, which are called "cirrostratus clouds".

Isolated cumulonial clouds, which appear to be white because of the thicker cloud layer and the sunny side, where the light is almost entirely reflected; On the backlit side and its bottom, the light is not easy to transmit, and it looks grayish and black. At sunrise and sunset, because the sun's rays are obliquely shining through the thick atmosphere, the air molecules, water vapor and impurities scatter a large number of short-wave parts.

However, the red and orange long-wave parts are not scattered much, so when they reach the lower atmosphere, the long-wave light, especially the red light, accounts for the absolute majority, and not only the sky in the sunrise and sunset directions is red, but even the bottom and edges of the clouds illuminated by it also turn red. Because the clouds are composed of water droplets, ice crystals, and a mixture of the two, the light of the sun and the moon can also cause all kinds of beautiful halos or rainbows when they pass through.

The clouds in the sky are made up of water vapor, and when they reach a certain level of weight, they fall.

The white clouds scattered in the sky are formed by the cold of the gas containing water vapor, so since the gas containing water vapor is hot, it will be governed by the principle of hot air rising, so the hotter gas containing water vapor rises upward, and after the cold, clouds are formed.

Because clouds are formed by water vapor together, they float in the air, and when the clouds condense into water droplets, they will fall.

Wind speed is the main factor that determines the speed at which clouds move, and the higher the wind speed, the faster the clouds will move as observed by the naked eye.

To put it simply, the ingredient of clouds is water. The water vapor that rises in the sky is cooled and condenses into tiny water droplets or ice crystals, which aggregate to form clouds.

It's like taking a hot bath in winter, when water vapor floats up and encounters cold air, it produces a white mist. These small droplets do not fall as easily as large droplets. During their fall, their movement creates friction with the surrounding air.

Because they have a small mass but not so small a surface area, they don't fall as easily as large water droplets that break through air resistance – think of water droplets in clouds as small ice crystal parachutes.

Air is a fluid, that is, a flowing object, and water is the most common fluid, when an object moves in the air, it will be subjected to resistance. As the speed increases, the resistance will increase, just like rowing on water, if you slide slowly, you can easily slide through, but if you stroke at a fast speed, you will need more force because the resistance is greater.

If there is no buoyancy or updraft, the cloud droplet will indeed fall down under the influence of gravity, but when the fall reaches a certain speed, the air resistance will be so large that it will just cancel out the gravity force completely, and the cloud droplet will fall very slowly, as long as there is enough updraft or buoyancy, it may make the cloud droplet float in the air and not fall.

Generally speaking, the lighter the weight of an object dropped from a height, the more obviously it will be affected by air resistance, resulting in a slower rate of fall. This may also explain why people who fall from a height can be seriously injured, while ants who fall from the same height often do not suffer any harm.

For an object as small and light as a water droplet in a cloud, the effect of air resistance is even greater. It has been calculated that it will take 2 to 6 years to fall 1 meter, so it is not that the clouds will not fall, but the speed of falling is so slow that we can hardly feel it. And because it's so light, when it encounters updrafts, it can even be blown higher and higher.

Wind speed is the main factor that determines how fast the clouds are moving. Wind is generated by the flow of air, and what determines the speed of air flow is the difference in air pressure between the two.

Today, the north wind is relatively strong.

The reason for the flow of air is the wind, not the cause of rotation.

<> because clouds are water vapor floating in the air.

The air is also constantly flowing in the air. The movement of the air is the wind, which blows the clouds away, and the faster the air moves, the faster the clouds go, and the reason why the clouds float in the air is because of the movement of the atmosphere, the low-altitude atmosphere.

It belongs to the troposphere.

The air is constantly moving irregularly, the air is not absolutely stationary, any air disturbance can support the particles of a certain size, which is one of the characteristics of the particles when they are fine to a certain extent, and the specific gravity of the substance itself has less impact on the sedimentation, so the clouds will drift away.

This is mainly caused by the movement of air, and the clouds are water vapor floating in the air. The air is also constantly flowing in the air. The movement of the air is the wind, which blows away the clouds. The faster the air moves, the faster the clouds go.

Clouds are the tangible result of the vast water cycle on Earth. When the sun shines on the surface of the earth, water evaporates to form water vapor, and once the water vapor is supersaturated, water molecules collect around fine dust (condensation nuclei) in the air.

The resulting water droplets, or ice crystals, scatter sunlight in all directions, which gives the appearance of a cloud. In addition, clouds can take on a variety of shapes, and they are divided into many types depending on the height and shape of the sky.