Children like to watch clouds and the sky. Why?

The clouds in the sky are really varied and changeable. Some are like feathers, floating gently in the air; Some are like fish scales, neatly arranged one by one; Some come and go like sheep; Some are like a big quilt, covering the sky tightly; Others are like mountains, rivers, lions and galloping horses ... sometimes they decorate the sky beautifully, and sometimes they cast a shadow over it. Just now, it was white clouds and sunny. In a blink of an eye, it was cloudy and it rained cats and dogs. Clouds are like the "signboard" of weather: what kind of weather will appear when there are clouds hanging in the sky. Experience tells us that thin clouds in the sky are often a symbol of sunny weather; Those low and thick clouds are usually signs of rain and snow. The lightest and tallest clouds are called cirrus clouds. This kind of cloud is very thin, and sunlight can shine on the ground through it, and the light and shadow of houses and trees are still very clear. Cirrus clouds are floating in wisps, sometimes like a white feather, sometimes like a white silk tulle. If cirrus clouds line up in the air, it is like a scale wave caused by a breeze blowing over the water. There is little water, so they usually don't bring rain or snow. There is also a kind of white clouds like cotton balls, called cumulus clouds. They are often scattered in the sky about two kilometers, reflecting the bright sunshine, and the clouds are surrounded by golden light. Cumulus clouds appear in the morning, most in the afternoon, and gradually dissipate in the evening. On sunny days, we occasionally see a kind of cumulus. Cumulus clouds are flat spherical clouds arranged well. Like white sheep on the grassland, cirrus, cirrocumulus, cumulus and altocumulus are all beautiful. When the continuous rain and snow came, cirrus clouds were gathering, and a thin cloud appeared in the sky, as if covered with a white silk curtain. This cloud is called cirrostratus, and the weather will turn cloudy. Then, the clouds are getting lower and thicker, and you will see the sun or the sun through the clouds. Hazy. At this time, cirrostratus has changed its name and surname, so it's time to call it a high-level cloud. When high-level clouds appear, it often rains or snows within a few hours. Finally, the cloud pressure becomes lower and thicker, the sun and the moon are shaded, and the sky is densely covered with dark gray clouds. As long as this cloud is called nimbostratus nimbostratus, continuous rain and snow will come. In summer, cumulus clouds will be seen in the sky before the thunderstorm comes. If cumulus clouds rise rapidly and form high Yunshan, and the peaks compete with each other and go straight to the zenith, they become cumulonimbus clouds. Cumulonimbus clouds will grow longer and higher, the cloud bottom will gradually turn black, and Yunfeng will gradually blur. Soon, the whole Yunshan will collapse, with dark clouds all over the sky. In an instant, thunder rumbles and thunder flashes, which will immediately lead to heavy rain, sometimes hail or .. guess the weather. Around the sun and the moon, sometimes beautiful colored apertures appear, the inner layer is red and the outer layer is purple. This aperture is called halo. Solar and lunar halos often appear on the cirrostratus, and the high-rise clouds behind cirrostratus and nimbostratus are signs of heavy rain. Therefore, there is a saying that "the sun is dizzy in the middle of the night and the moon is dizzy at noon", which means that when cirrostratus appears with halo, the weather will get worse. It's called Hua. The color arrangement is purplish red, just the opposite of halo. Sunflowers and Moon Bay are mostly produced at the edge of cumulus clouds. From small to large, the weather tends to be fine. The central part of China has changed from big to small, and the weather may turn rainy. In summer, after the rain clears, a colorful arc is often hung on the cloud curtain opposite the sun. This is the rainbow. People often say: "The east rainbow thunders and the west rainbow rains." The rainbow is in the west and there will be heavy rain. There is also a cloud color, which often appears in the early morning or evening. The sun shines on the sky and turns the clouds red. This cloud is called Xia Xia. The morning glow is in the west, indicating that rainy weather is attacking us. The sunset glow in the east shows that the weather has been fine these days. Therefore, there is a proverb "Don't go out at sunrise, travel thousands of miles at sunset". Clouds can help us identify sunny and rainy days and predict weather changes, which is of great significance to industrial and agricultural production. If you want to learn to understand the weather from the clouds, you must learn from experienced people with an open mind, pay attention to the changes of the clouds, and master the rules through repeated observation. However, the weather changes are extremely complicated. Look. No, I have a trick. Once, when I was reading, I saw a folk proverb written in the book: if the cloud goes east, cars and horses will pass; The clouds go south and the water rises; Clouds go west, covered with cotton-padded clothes; Clouds going north are good for drying wheat. So I went to "consult" a knowledgeable computer. The computer "says" like this: "Clouds facing east and north indicate sunny weather; Clouds to the south and north indicate that there will be rainy weather in the near future. " But I don't believe in such a god. How to predict the weather by human eyes alone? So I'm going to try. But almost every day in those days, there were "no clouds in Wan Li", which always made my experiment impossible. Finally, one day, a small cloud appeared in the sky, but it didn't "move" but just "stayed" in place. After a few days, the wind I wanted finally came and the clouds came. Haha, I can start the experiment first. So, it will rain tomorrow or the day after tomorrow. It will rain tomorrow, and physical education class will have a holiday tomorrow. I really hope it won't rain tomorrow and it won't be too late the day after tomorrow, I think. The next morning, the first thing I did was to see if it was raining outside the window. As expected. There is no shadow of rain in the sky, and I can't help but feel a little happy and mixed with a little disappointment ... On the third morning, just when I opened my eyes, I heard pouring rain. Proverbs from ordinary people are the crystallization of people's wisdom, not without scientific basis. They are all obtained by ordinary people through careful observation and can be explained in the ever-changing nature ... This is my trick. What about you?