What are the 100,000 reasons why nature is a little common sense?

1. Why does it rain?

This is because the water of rivers, oceans, and lakes turns into water vapor when exposed to sunlight.

Water vapor rises into the air because the sky is cold, and when water vapor encounters cold air, it becomes small water droplets, Xiaoice crystals and finally clouds.

The small water droplets that make up the cloud are supported by the upper and lower air currents. The small water droplets and Xiaoice crystals in the cloud collide and merge with each other in motion, and some water vapor directly condenses and adheres to the surface of the ice crystals, and the Xiaoice crystals will grow, and when the updraft cannot support it, it will fall under the action of gravity, forming various forms of precipitation (rain, snow, hail.

etc.). During the descent, the temperature at low altitude rises, and the ice crystals melt, which becomes rainfall. When some Xiaoice crystals become relatively large ice crystals, they will fall directly to form hailstones.

2. Why does a beautiful rainbow appear after rain?

The sun creeps out after the rain, and a colorful rainbow sometimes hangs in the sky. This is because the air after the rain is very humid. There were also many small droplets of water hanging in the air. Sunlight shines on these small droplets of water, due to the refractive index.

Different colors of light pass through the small water droplets, and different degrees of deflection occur, so that the various colors are scattered to form a beautiful rainbow.

3. Why does it thunder?

When the air near the surface is constantly heated and rises, and the cold air above sinks, a strong convection is formed, resulting in the formation of towering cumulonimbus clouds.

When water vapor runs everywhere in the cloud, static electricity is generated, and the upper end of the cloud generates a positive charge.

The lower end of the cloud will produce a negative charge, and the ground will have a positive charge, and when the charge is neutralized, it will emit a lot of light and heat, causing the air to expand and heat up in an instant.

Glowing, glowing is lightning, and expanding ** making a loud noise is thunder.

4. Why doesn't it thunder in winter?

In winter, the air is cold and dry due to the cold air mass of the continent, coupled with solar radiation.

Weak, the air is not prone to violent convection, so thundershowers rarely occur.

Therefore, it is rare to see thunder in winter.

5. Why is the lake water salty and light?

Most lakes are formed by river water infusion. As the river flows, it dissolves some of the salts in the rocks and soil. and bring salt into the lake.

If the lake has an outlet, the salt will be lost with the river water, and the lake will be light. If the lake has no outlet or is not well drained, the salt will slowly settle down and the lake will be salty.

6. Why is the clear sky blue?

Clear skies are azure and are caused by the scattering of sunlight, which enters the Earth's atmosphere.

, you will encounter many obstacles, such as oxygen, nitrogen, and many small particles.

Among them, the red light has a strong penetrating ability and can directly pass through obstacles to the ground. The penetration of blue light is weak, and when it hits an obstacle, it is blocked in the air, forming a scatter that fills the entire sky, so that the clear sky appears blue.

Because the water on the sea encounters cold air, it turns into water vapor, and then it turns into clouds and water droplets, and it rains.

"100,000 Whys".Questions & Answers:

1. Why do chickens eat grains of sand?

The chicken's diet is mainly rice.

and wheat grains, but it doesn't have teeth and can't chew the food, so they need sand to help grind the food. And the chicken has a stomach that stores sand and stones, and that's how it uses sand to help digest food.

Target. 2. Why don't carrier pigeons get lost?

The pigeon has very good eyesight and memory, and there is a magnet on the head.

The same thing can guide it. In addition, it can also adjust the direction of flight according to the position of the sun, stars and moon, and with this special ability, the carrier pigeon can complete the task of sending letters.

3. Why do dogs stick out their tongues in summer?

In order to dissipate heat. Sweat glands in dogs.

It grows on the tongue, so when it is hot, in order to dissipate heat, the dog will stick out its tongue to let the sweat out and take away the heat.

4. What is the difference in a kitten's beard? The kitten's beard is a very standard ruler, and when a mouse escapes into a mouse hole, you can know if it can be chased into the mouse hole by measuring it with its beard. If the beard touches the cave wall, the hole is too small to enter, and if the beard does not touch the cave wall, it means that you can go in.

5. Police dogs. Why can you help solve crimes?

The olfactory cells on the dog's nose are particularly well developed, and the mucous membranes covering them secrete mucus that help them distinguish different smells, so their noses are particularly sensitive. Specially trained police dogs, as long as they have smelled the smell left by the bad guys, they can remember it firmly, and then follow this smell to find the target, so that they can catch the bad guys and solve the crime.

Why do dogs stick out their tongues in summer? Because the dog is dissipating heat.

1. Why does it rain?

The water on the ground absorbs heat and becomes water vapor, rising to the upper layer of the sky vapor layer, due to the low temperature of the upper layer of the vapor layer, the volume of water vapor decreases and the proportion increases, and the steam falls.

In this way, the gas molecules gradually shrink and finally concentrate at the bottom of the vapor layer, forming a low temperature zone at the bottom layer, and the water vapor is concentrated in the low temperature zone, which forms a cloud. The clouds gradually become larger, the convection up and down inside the clouds becomes more and more intense, the temperature becomes lower and lower, and finally raindrops fall.

2. Why does it snow?

Snow is a form of precipitation and is meteorologically called solid precipitation. Snowflakes grow in a type of cloud that has both ice crystals and supercooled water droplets, called ice-water mixed clouds. In this cloud, supercooled water droplets evaporate into water vapor, which rushes to the surface of the ice crystals, where they gradually increase and form snowflakes.

After the snowflake is formed, it will fall downward, in the process of falling, when encountering other snowflakes, often adhere together, grow up slowly, when encountering updraft, the speed of the small snowflakes rises faster than the big snowflakes, the small snowflakes catch up with the big snowflakes and adhesion, after several repetitions, it gradually becomes a snow mass with a diameter of several centimeters like cotton and goose feathers.

When the updrafts in the air can no longer hold these snowflakes, they fall from the clouds, and if the temperature of the lower air is below 0 at this time, the snowflakes fall to the ground, which is what people see as white snow.

3. Why is it windy?

Wind is a natural phenomenon caused by the movement of air, and it is caused by the heat of solar radiation. Sunlight shines on the earth's surface, causing the surface temperature to rise, and the air on the surface of the earth is heated and expands lightly and rises.

When the hot air rises, the cold air at a low temperature flows in laterally, and the rising air cools and becomes heavier and falls, and the air heats up to rise due to the high surface temperature, and the flow of this air generates wind.

4. Why does it freeze?

Ice is a solid form of water, which condenses into ice at low temperatures (usually below zero degrees Celsius, and can also freeze at zero degrees if there are many impurities in the water), or at very high pressures, hot ice can also form at very high temperatures. Ice forms when water is below 0 degrees Celsius.

5. Why does it thunder?

Thunder is a kind of discharge phenomenon, when the weather changes greatly, the air will become very unstable, prone to strong upward convective movement, thus forming cumulonimbus clouds, cumulonimbus clouds have a lot of active water vapor, and static electricity will be generated when they keep moving up and down.

After the formation of static electricity, the upper end of the cloud will gather positive charges, the lower end will gather negative charges, but the ground is also negatively charged, when the voltage difference between the negative charge at the lower end of the cloud and the negative charge on the ground is very large, it will break through the air, so that the air expands in an instant, heats up and glows, the light emitted is lightning, and the huge sound of expansion is thunder.

Whenever I open the book "100,000 Whys" and see that there are many esoteric questions on it, I become curious.

100,000 Whys is a series of popular science knowledge books with countless contents. From astronomy and geography to trivial matters in life, each article tells us a small scientific truth. It not only helps me broaden my horizons and increase my knowledge, but also increases my interest in learning, which is really a good helper for me.

Before, I didn't know about the Nine Planets and the Milky Way at all. "100,000 Whys" introduces us to the formation of celestial bodies. I learned that Venus, Mercury, Saturn, Jupiter, Mars, Earth, Uranus, Neptune, and Pluto are the nine planets in the solar system.

The Milky Way, on the other hand, is made up of many nebulae like the solar system. The Earth we humans live on is just a "little star" in the universe.

100,000 Whys often introduces us to interesting natural phenomena, such as how the "four seasons" of the year are formed. What color is under the seabed? Why is sea water blue?

I discovered a lot of scientific truths and solved some mysteries in my heart.

In this book, the one article I was most interested in was "Why Do You Hit Three Inches and Seven Inches When Fighting Snakes?" The book says that the snake is beaten three inches because three inches is the easiest place to break the snake's vertebrae, so once it is broken, the organs behind it are also destroyed. The seven inches are because the seven inches are the part of the snake's heart, and the heart is broken, and of course the snake stove feast is dead.

During the holidays, I often traveled to the mountains with my parents, and I heard that there are many snakes in the mountains, and if I run into them, I know how to deal with them.

100,000 Whys also answers some questions in daily life, such as: Why are apples both laxative and antidiarrheal? The reason is that apples are rich in organic acids and a particularly high amount of fruit and vegetable gum; Why brush your teeth at night?

Because the bacteria in the mouth can cause food crumbs to spoil and ferment.

In short, "100,000 Whys" is a good book, it made me realize that the world is so colorful, and the knowledge is so intellectually interesting; It taught me that science is power and knowledge is wealth. I like "100,000 Whys", when you open the book, the interesting knowledge stories make you confused; I love "100,000 Whys", which is a fun, informative and inspiring book series, which fascinates me deeply.

In the wilderness of nature, how many paths lead to the peak of knowledge of nature, I will follow this path, wander in the ocean of knowledge, and be a useful person.