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Encyclopedia knowledge handwritten newspaper content

1. Encyclopedia knowledge manuscript

Encyclopedia knowledge handwritten newspaper 1. Content of popular science knowledge handwritten newspaper

The charm of science is everywhere. As long as we take the initiative to explore with curiosity, we will find many interesting phenomena in life, such as the following 10 knowledge, which will definitely make your posture soar.

1. The largest monkey in the world is a baboon, and the smallest monkey is a bonobo.

baboon

2. The human body increases oxygen in the blood and discharges more carbon dioxide by yawning and deep breathing, thus making people more energetic. When people are sleepy, they often yawn constantly to remind people that their brains are tired and need sleep and rest.

People can drink about 80 tons of water in their lifetime.

4. The brightest star in the sky is Sirius Canis, with a magnitude of-1.46 and a distance of 8.7 light years from the Earth.

Everyone must have the habit of picking their nostrils. According to the survey, 90% people put their fingers into their nostrils several times a day. According to research, picking your nostrils may introduce dangerous bacteria into your nostrils, such as Staphylococcus aureus.

6. Morning glow and sunset glow are the most beautiful colors in the sky. It is formed because sunlight passes through the thick atmosphere around sunrise and sunset and is scattered by a large number of air molecules.

7. There is always lightning in Lake Maracaibo in Venezuela. Even scientists don't know why, but it seems that lightning is caused by airflow combined with local topography.

There used to be giant dragonflies in ancient times. The giant vein dragonfly appeared about 300 million years ago, about as big as a seagull, and its wings are about 65 cm long.

9. Lobsters die from molting, being eaten or being injured. They can live to be 70 without getting old first. If these three things don't happen, we can continue to live forever.

10, "White rabbit, white, so cute to jump". Rabbits beat the ground with their legs to transmit information, mostly with their hind legs, which is a way for them to express their feelings to female rabbits.

2. Primary school students' popular science handwritten newspaper content

The reason why sorbet bubbles is because there is a lot of invisible water vapor in the outside air. When it comes to cold sorbet, it will liquefy into droplets when it is cold. It seems that the sorbet is bubbling.

Sunflower stems contain a wonderful auxin. This auxin is very afraid of light. When it is irradiated by light, it will go to the backlight side, and at the same time, the cells on its wide side will multiply rapidly, so the backlight side will grow faster than the light side, which makes the sunflower bend to the optical rotation.

Cicada's shell (exoskeleton) is hard and can't expand with the growth of cicada. When the cicada grows to a certain stage, the cicada's exoskeleton restricts its growth, and the cicada loses its original exoskeleton, which is cicada slough.

We see the stars shining, not because the luminosity of the stars has changed, but because of the occlusion of the atmosphere. The atmosphere is between us and the stars. When starlight passes through the atmosphere, it will be affected by the density and thickness of the atmosphere. The atmosphere is not absolutely transparent, and its transparency will change according to its density. So when we look at the stars through it on the ground, we will see that the stars seem to be flashing.

When we feel tired, a lot of carbon dioxide has been produced in our bodies. When there is too much carbon dioxide, oxygen must be supplemented to balance the needs of the body. Because these residual carbon dioxide will affect our body's functional activities, then the body will send out a protective reaction, so we yawn. Yawning is a deep breathing action, which will let us breathe in more oxygen and expel more carbon dioxide than usual, and it can also eliminate fatigue.

Snakes have many scales, which are the outermost armor on their bodies. Scales are not only used to protect the body, but also to be their "feet". When a snake crawls forward, its body will be S-shaped. Every scale outside the S-shape will tilt upward to help the snake catch the uneven road when it moves forward. These scales cooperate with the muscles of the snake and can push the body forward, so the snake can walk without feet!

There is a substance called melanin in our hair. The more melanin, the darker our hair will be. Without melanin, hair will turn yellow or white. When human beings reach old age, various functions of the body will gradually decline, and the formation of pigments will be less and less, so the hair will gradually turn white.

10 when others scratch ourselves, we will feel itchy and laugh nonstop; However, when we scratch ourselves, we not only don't laugh, but also don't itch. Based on our psychological preparation, the brain will send out a message that there is no danger, and the nerves will relax, so that they will not laugh and itch!

1 1 Looking at the sea, it is often found that the sea water is blue-green. However, when you pick up the sea water, you can only see it as transparent and colorless as old water. It turns out that the seawater itself is not much different from the water we touch every day, and it is also transparent. The green we see is actually a phenomenon caused by the ability of seawater to absorb light. Only green light can be absorbed and reflected by seawater; When the seawater is deep, the green light is also absorbed, and the seawater looks blue.

12 There are hairs on the surface of our skin, and there is a vertical hair muscle under each pore. When we come into contact with nerves (such as anger, fear, cold, etc. ), our body temperature will drop, the vertical hair muscles will contract, which will make our hair stand up and form goose bumps. In addition to keeping warm, this physiological system can make animals look bigger than they really are, thus scaring off enemies.

3. How to write the contents of popular science manuscripts?

1 The strongest muscle in the human body is the tongue.

It is impossible to hold your breath and commit suicide. Crocodiles cannot stick out their tongues.

Polar bears are left-handed. An ostrich's eyes are bigger than its head.

Starfish haven't evolved brains yet. A cockroach with its head cut off can live for 9 days, and the cause of death after 9 days is starvation.

Giraffes don't cough. The owl is the only bird that can distinguish blue.

10 The whale's heartbeat is only 9 times per minute. 1 1 astronauts can't cry in space, because tears can't flow without gravity.

12 elephants will always stand after death. 13 Some insects can live without their heads 1 year.

14 The wing length of a Boeing 747 is exactly the distance the Wright brothers flew for the first time. Popular science knowledge 1. Why do the stars twinkle? We see the stars shining, not because the luminosity of the stars has changed, but because of the occlusion of the atmosphere.

The atmosphere is between us and the stars. When starlight passes through the atmosphere, it will be affected by the density and thickness of the atmosphere. The atmosphere is not absolutely transparent, and its transparency will change according to its density.

So when we look at the stars through it on the ground, we will see that the stars seem to be flashing. 2. Why do people yawn? When we feel tired, a lot of carbon dioxide has been produced in our bodies.

When there is too much carbon dioxide, oxygen must be supplemented to balance the needs of the body. Because these residual carbon dioxide will affect our body's functional activities, then the body will send out a protective reaction, so we yawn.

Yawning is a deep breathing action, which will let us breathe in more oxygen and expel more carbon dioxide than usual, and it can also eliminate fatigue. 3. Why can snakes walk without feet? Snakes have many scales, which are the outermost armor on their bodies.

Scales are not only used to protect the body, but also to be their "feet". When a snake crawls forward, its body will be S-shaped.

Every scale outside the S-shape will tilt upward to help the snake catch the uneven road when it moves forward. These scales cooperate with the muscles of the snake and can push the body forward, so the snake can walk without feet! 4. Why do sunflowers always bloom towards the sun? There is a substance called "auxin" in the stem under the sunflower disk.

This substance has the function of accelerating replication, but it is anti-optical, and it will run to the backlight side whenever it encounters light. So when the sun rises, the stem of the sunflower immediately hides to the side of the backlight, as if the whole plant is bent in the direction of the sun.

5. Why does hair turn white when people are old? There is a substance called melanin in our hair. The more melanin, the darker our hair will be. Without melanin, hair will turn yellow or white.

When human beings reach old age, various functions of the body will gradually decline, and the formation of pigments will be less and less, so the hair will gradually turn white! 6. Why do fireflies glow? Fireflies emit light because there is a luminous body at the end of their abdomen, which is filled with a lot of phosphorus-containing luminescent substances and luminescent enzymes, so that fireflies can emit flashing light. The purpose of fireflies is not only lighting, but also courtship, vigilance and trapping.

This is also a communication tool for them. Different kinds of fireflies emit light in different ways, frequencies and colors, so they can convey different information. 7. Why do you growl when you are hungry? When you are hungry, you will purr. This is because the food you have eaten before has almost been digested. Although the stomach is empty, the gastric juice in the stomach will continue to secrete.

At this time, the contraction of the stomach will gradually expand, and the liquid and gas inside will be stirred up and purr. Don't be embarrassed by your stomach growling next time! Because this is a normal physiological action.

8. Why can't ostriches fly? A giant ostrich, but they can't fly into the sky! This is not because their wings are useless, but because their feathers are too soft and their wings are too small to fly at all. In addition, the ostrich's muscles are underdeveloped and its sternum is flat, which is not conducive to flying.

Ostriches live in Africa. Because they have lived in desert areas for a long time, their bodies gradually evolved into what they are now in order to adapt to the environment. 9. Why can't it go bad easily? Lunch meat, black bean shad, tomato sauce beans.

They are all delicious canned food, which can be preserved for a long time without deterioration.

This is because the can is sealed, so bacteria can't enter. When people make canned food, they pump all the air out of the canned food and then seal it.

In the absence of air, even if the food inside is contaminated with a little bacteria, they can't survive or reproduce! 10. Why does the baby cry all the time when it is born? Babies cry when they are born, not because they are unhappy, but because they are taking the first breath of air! When babies leave their mother's body and are born, the first breath of air will rush to their throats, violently impact the vocal cords, make them vibrate, and then make a sound similar to crying. 1 1. Why do lizards keep bouncing up after their tails are broken? In order to protect themselves, many lizards also protect their eyes and ears; When some lizards are attacked, their tails will be broken due to the severe contraction of their muscles.

Because there are still some nerves alive in the broken tail, it will keep bouncing, thus distracting the enemy and running away. Don't think that their lives will end like this. In fact, it only takes a few months, and their tails will grow back and move on.

12. Why is the squirrel's tail so big? Don't look at the relaxed mouse tail! When the squirrel jumps around the tree, its tail plays a great role. It can keep balance when the squirrel jumps to the tree to avoid falling and being injured.

In addition, this big tail can play a more protective role in winter, tightly surrounding the squirrel's body, which is convenient and practical. 13. Why can't a person have one or three thumbs? The average person has five fingers, each with a different length.

However, does anyone realize that besides the thumb, other fingers also have three sections, while the thumb alone has only two sections? It turns out that the number of joints is just the same as the other four fingers. If it is three knots, the thumb will appear weak, so that it can't lift heavy objects; If there is only one part.

4. Popular science knowledge handwritten newspaper content

1. The largest monkey in the world is a baboon, and the smallest monkey is a bonobo. Baboon 2. By yawning and deep breathing, the human body increases the oxygen in the blood and discharges more carbon dioxide, thus making people more energetic.

When people are sleepy, they often yawn constantly to remind people that their brains are tired and need sleep and rest. People can drink about 80 tons of water in their lifetime.

Note: If a person lives to 60 years old, he will drink about 43,500 kilograms of water in his life, that is, if he drinks 2 liters (kilograms) of water every day, 60*365 days *2 kilograms = 43,800 kilograms, minus about 300 kilograms in infancy. Needless to say, you have to drink 80 tons of water to live to 60 years old. 4. The brightest star in the sky is Sirius Canis, with a magnitude of-1.46 and a distance of 8.7 light years from the Earth. Everyone must have the habit of picking their noses.

According to the survey, 90% people put their fingers into their nostrils several times a day. According to research, picking your nostrils may introduce dangerous bacteria into your nostrils, such as Staphylococcus aureus.

7. There is always lightning in Lake Maracaibo in Venezuela. Even scientists don't know why, but it seems that lightning is caused by airflow combined with local topography. There used to be giant dragonflies in ancient times.

The giant vein dragonfly appeared about 300 million years ago, about as big as a seagull, and its wings are about 65 cm long. 9. Lobsters die from molting, being eaten or being injured. They can live to be 70 without getting old first. If these three things don't happen, we can continue to live forever.

5. hurry up ~

Small scientific knowledge

Why does sorbet get angry?

Why do sunflowers always face the sun?

Sunflower stems contain a wonderful auxin. This auxin is very afraid of light. When it is illuminated, it will go to the backlight side, and the cells on the backlight side will multiply rapidly. Therefore, the backlit side will grow faster than the bright side, which will bend the sunflower to light.

Why does cicada shed its skin?

How do bees make honey?

First, the bees spit the sweet juice of the flowers they picked into an empty hive. At night, they suck sweet juice into their honey stomachs to make it, and then spit it out and swallow it. It takes 100~240 times to make sweet honey. Recoil boat-small-scale production: take an unopened can, make a hole in the eccentric bottom of the can and the wall on the same side, and pour out the drink. Tie the cans to the semi-metal soap box with two iron wires, and put a small metal cover (such as balsam box) in the box, and put alcohol cotton in it, as shown in the figure. During the experiment, inject 1/4 cans of clean water from the side hole, and plug the side hole first. Put the soap box. Method: (1) Boil a ping-pong ball for 2 minutes, take it out after the ball expands, punch a hole in the ball and put the pinball into the ping-pong ball. Then stick two ping-pong balls together at the opening. (2) Stick the wool on your head and comb it into your favorite hairstyle at will.

You should be able to write a complete paper. If it's not enough, just write a bigger one. . .

6. How to write the contents of popular science manuscripts?

1. The largest monkey in the world is a baboon, and the smallest monkey is a bonobo.

baboon

People can drink about 80 tons of water in their lifetime.

4. The brightest star in the sky is Sirius Canis, with a magnitude of-1.46 and a distance of 8.7 light years from the Earth.

7. There is always lightning in Lake Maracaibo in Venezuela. Even scientists don't know why, but it seems that lightning is caused by airflow combined with local topography.

There used to be giant dragonflies in ancient times. The giant vein dragonfly appeared about 300 million years ago, about as big as a seagull, and its wings are about 65 cm long.

9. Lobsters die from molting, being eaten or being injured. They can live to be 70 without getting old first. If these three things don't happen, we can continue to live forever.

7. Safety tips handwritten newspaper

Pupils' traffic safety knowledge When the crosswalk signal light is green, pedestrians are allowed to cross the crosswalk; When the green light flashes, pedestrians are not allowed to enter the crosswalk, and those who have entered the crosswalk can continue to pass; When the red light is on, pedestrians are not allowed to enter the crosswalk.

You shoot one, I shoot one, traffic safety comes first, you shoot two, I shoot two, the red, green and yellow lights should be seen clearly, you shoot three, I shoot three, the red light is safe, you shoot four, I shoot four, the vehicle drives to the right, you shoot five, I shoot five, pay attention to the big and small corners, you shoot six, I shoot six, don't ride a bicycle to carry people. L obey the traffic police's command, and achieve "green light, red light stops". 2. Take the crosswalk line; In sections with overpasses and underpasses, you should consciously take overpasses and underpasses.

3. Go straight, don't detour; In the section where there is no crosswalk, you should look at the left first, then at the right, and you can only cross the road when you confirm that there is no motor vehicle. 4. Don't cross the safety fence and isolation pier in the middle of the road.

Don't cross the street suddenly, especially if an acquaintance or friend is on the phone across the street, or if the bus you want to take has pulled into the station, don't act rashly to avoid accidents. What are the most dangerous situations when walking? (1) It's dangerous to cross the road.

(2) Walking sideways in groups of three or five on non-sidewalks is the most prone to traffic accidents. (3) After the rush hour, there are fewer cars on the road, because there are fewer cars and fewer people on the road.

Paralysis plus paralysis equals danger. (4) Walk with one heart and two minds, read while walking, or think while walking, or chat while walking, and play while walking ... In this way, the car may not hit you, but you will hit the car yourself, so it is also very dangerous.

Pay attention to 1 when riding a motor vehicle. You have to line up and get on the bus in order, so it's not crowded. When getting on and off the bus, wait for the bus to stop, get off first and get on, and don't fight for it.

Don't stick your head and hands out of the window, and don't throw things out of the window. 4. Sit firmly and hold well. When there is no seat, your feet are naturally separated, stand sideways, and hold the handrail with both hands to avoid falling and being injured when the vehicle brakes suddenly.

You should fasten your seat belt in the front row when you take the bus. How to identify traffic lights? There are two kinds of traffic lights. One is the red, yellow and green traffic lights used to direct vehicles, which are set in conspicuous places at intersections and are called vehicle traffic lights. The other is the red and green signal lights used to guide pedestrians to cross the road, which are set at both ends of the crosswalk and called crosswalk lights.

China's traffic laws and regulations also stipulate that when the traffic signal light: 1) is green, vehicles and pedestrians are allowed to pass, but turning vehicles shall not hinder the passage of straight vehicles and pedestrians. 2) When the yellow light is on, vehicles and pedestrians are prohibited from passing, but vehicles that have crossed the stop line and pedestrians that have entered the crosswalk can continue to pass.

3) When the red light is on, vehicles and pedestrians are not allowed to pass. 4) When the green arrow light is on, vehicles are allowed to pass in the direction indicated by the arrow.

5) When the yellow light flashes, vehicles and pedestrians can pass under the principle of ensuring safety. 4. Bicycle riding safety knowledge China is called "the kingdom of bicycles" and has the largest number of bicycles in the world.

However, due to its simple structure, the bicycle falls down when touched, and its stability is poor, so it is a weak means of transportation. In traffic accidents, the number of people injured by non-motor vehicles (mainly bicycles) ranks first, and the number of casualties ranks second.

In our country, children 12 years old or older can start cycling on the road, and they should obey the traffic rules and ride in the slow lane. When the signal light is green, pedestrians are allowed to pass; When the yellow light is on, pedestrians are not allowed to pass, but pedestrians who have entered the sidewalk can continue to pass; When the red light is on, pedestrians are not allowed to pass; When the yellow light flashes, pedestrians must pass under the principle of ensuring safety.

The regulations that pedestrians must abide by pedestrians must walk on the sidewalk, and if there is no sidewalk, walk on the right; Crossing the road requires a crosswalk; When crossing a crosswalk controlled by traffic signals, you must abide by the provisions of the signals; When passing the sidewalk without traffic signal control, look around, pay attention to the traffic, and don't chase or run; If there is no crosswalk, you must go straight through, and vehicles are not allowed to cross suddenly when approaching; Anyone who takes the overpass or underground passage must take the overpass or underground passage; It is not allowed to climb guardrails and fences along and in the middle of roads, and it is not allowed to push, chase, forcibly stop or throw vehicles on roads. What safety precautions should I pay attention to when riding a bicycle? When going out by bike, the unsafe factors are more than walking. The following safety precautions are required: 1. Always check your bike to keep it in good condition.

Whether the brakes and bells are sensitive and normal is particularly important. 2. Bikes should be the right size, and don't ride children's toy cars on the streets.

Don't ride a cart alone. 3. Don't learn to ride a bike on the road; Children under twelve should not ride bicycles in the street.

4. Riding a bicycle should be on the right side of the non-motor vehicle lane and not retrograde; When turning, don't make a sharp turn, slow down in advance, see the surrounding situation clearly, and then turn with a clear gesture. 5. After crossing the road, slow down and pay attention to pedestrians and vehicles; Don't run the red light, stop the red light and wait until the green light comes on.

6. When riding a bicycle, don't spread your hands, don't ride with many people, don't climb each other, and don't chase each other. 7. Don't climb a motor vehicle when riding a bike, don't carry overweight things, don't take people by bike, and don't wear headphones to listen to the radio when riding a bike.

The song of elementary school students' safety knowledge (1) When you meet a gangster at 1 10, you should remember your phone number clearly and be clever in dealing with it, and the gangster will be caught soon. It is not safe to swim in private, so it is necessary to prevent dizziness and spasm. If you don't drink enough water from one river, you will go to the grave when you are young. Be careful when connecting hot water, the pot will be scalded by inverted buckle, and if it is wrong, it will cost money to be sad and cure the skin asymmetry; When the river rises, it is better to be brave than to be brave. It is only safe to walk around, and it will be fine after the rain. Don't tease the dog when crossing the yard, ask adults to drive the dog away, and don't be clever. It's dangerous to be bitten by a dog. Take a long walk on a hot day, remember not to drink raw water, your stomach hurts and you will feel dizzy.

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