"Popular Science" comment 1 Speaking of "desert", what kind of scenes will emerge in everyone's mind? A barren land, a dead world without living things? Is that really the case? In fact, there is a wonderful natural landscape and a treasure house of many rare animals. It introduced us to the magical world in the desert that we didn't know, which benefited me a lot.
Popular science is rich in content and is an excellent popular science reading for primary and secondary school students. Through reading, I have deepened my understanding of the desert. Before, I naively thought that there were only countless fools in the desert. Are there any other creatures? Soon, I denied my knowledge, because I found the answer in the book: the surface of the desert is not only sand, but also hard rock desert, gravel desert covered with small gravel, clay desert with finer grains than sand.
There are many plants in the desert. For example: Populus euphratica, cactus, Xu Changqing, red willow. Here, I will give you a brief introduction of Populus euphratica. Populus euphratica is a unique and precious forest resource in desert areas. Because of its tenacious vitality, it is also known as the hero tree of "immortal for thousands of years, immortal after death and immortal on the ground for thousands of years".
Curiosity is an inexhaustible motive force to inspire us to carry out scientific exploration. Why should I check in the train ticket? Curiosity makes our little heads question marks. Einstein said that it is more important to ask questions than to solve them. Sign-in has three functions: 1. Check whether the passengers have bought tickets. 2. A check is an insurance certificate. According to the regulations of the Ministry of Railways, from the time of ticket checking to the time when passengers leave the station, passengers are insured against accidental injuries on the train. If they leave the station halfway, the insurance will be invalid. This is compulsory insurance. In order to avoid crowding, the ticket office allows passengers to enter the station.
Books are the ladder of human progress. As long as you read more good books, your knowledge will be more abundant. Reading a good book is like talking to a noble person.
2. After reading Science Popularization, I can't wait to read it with the magazine Science Popularization that I just arrived. This is the sixth issue of 20xx, which is rich in content, including desert knowledge, space knowledge and the secrets of plant growth ... Among them, I am most interested in desert exploration, with pictures and texts, which is full of interesting knowledge: the causes of desert are varied, various types of deserts, plants in the desert, animals in the desert and so on. What shocked me most was the essay "Worried about Desertification", with a picture, which said: Desertification is an arid and semi-arid area. Due to the influence of natural factors and human activities, the ecosystem was destroyed, which made the original non-desert area have a similar environmental change process. The land affected by desertification accounts for 4 1% of the whole land area. If desertification in these areas is further aggravated, food supply and oil supply will become unstable, which will cause serious world problems. After reading this, I thought of a text I just learned this semester-"The Lark's Wish", which said that people's deforestation led to land desertification, yellow sand flying all over the sky and rivers flooding ... How terrible!
So I hope people must protect every inch of land under our feet, not only can't cut down trees casually, but also plant trees. Fortunately, many people have realized this and started to take action. They not only planted flowers and trees in arid areas, but even turned desert areas into beautiful homes.
My favorite book is Science Popular. This is a magazine about science and intelligence.
There are many life tips in popular science, such as: which nails grow fast, why the hair on the face is invisible, why the sugar will change color after a long time, why the fruit has a fragrance, and why people feel hungry and full. There are some interesting parts: a cool new program, which combines pictures and words. For example, there is a red light bulb with blisters on it. It's actually a bottle of drink. There are also "Xiaolu crossword puzzle", "intellectual challenge" and "eye contest".
The smallest frog on the earth is 9 mm long, smaller than chocolate beans: although the extinction rate of species is getting faster and faster, some new species have been discovered one after another. Scientists have discovered two new kinds of frogs in Papua New Guinea. They are not as big as chocolate beans, but they are about 8-9 mm long. These two newly discovered species are not only the smallest known frog population on the earth, but also the smallest quadruped or quadruped vertebrate on the earth. Anyway, this paragraph is very interesting. This is the tiny part of 1 science popularization. If you are interested, go to see popular science and some puzzle games, such as maze walking, crossword puzzles and eyesight games. This will relax everyone. There are some cartoons at the back of the book, which can help you learn scientific knowledge. There is no pressure to read.
If you are under pressure or have any troubles, I believe Popular Science is a good choice for 1. It can make you wander in the joy of the universe and immerse yourself in the future world, but improve your scientific knowledge.
When it comes to the desert, we have goose bumps all over. The desert is not only harsh, but also barren! However, although the desert is forbidden to die, it still contains a treasure house of rare creatures. This book introduces us to the Sahara Desert, which is uninhabited and full of all kinds of creatures. People, animals and plants can't live in the desert. Some plants can survive in such a harsh environment because they are all stunted. Cactus is an expert in desert survival. Cactus stays dormant and stores water in dry season. A hundred-year-old leaf can live for a hundred or a thousand years. Only two leaves grow in a lifetime. I read it and thought: Solanum lyratum is really a "fairy"! There are some flower seeds, waiting quietly in the soil. As long as it rains, they scramble to open and complete their short lives. In the desert, not only plants are stunted, but also animals are stunted. Camels are indispensable means of transportation in the desert. This desolate place is also the first step for animals to become stronger!
I benefited a lot from reading this book. Recently, I saw that my mother always suffered from insomnia at night, and she looked haggard when she got up the next day. I know that my mother has been working hard for me and my father, and there are several wrinkles in the corner of my eyes, which makes me very uncomfortable. I went to the book to find out the reason carefully, and it was worth it. Finally, I found that taking a hot bath or soaking my feet with warm water before going to bed would make fatigue disappear faster. A reasonable diet can supplement a lot of nutrients consumed by physical labor, so it is also a necessary measure to eliminate fatigue. Oh, I see! I immediately understood the mystery. I thought to myself, if I can let my mother relax and stop working hard for me, I will help her wash her feet and beat her back, reduce wrinkles and make her stop worrying about me. I should be self-reliant and filial to my mother. I told her these methods at once. The next day, I saw that my mother was much better. My mother told me that I slept soundly last night. I was secretly happy at this, as if I were in full bloom.
If you read this book, you can also find the fun of science. Maybe you are the next Newton!
On Sunday, I finished my homework, and then I watched the popular science, which I borrowed from my classmates.
Suddenly, the words "caramel will turn black and bitter" jumped into my eyes. "Hey? If the sugar is burnt, will it really turn black and bitter? " I asked my mother curiously. "Don't you just do it yourself?" Mom didn't know whether it was true or not, so she threw me a word.
It's better to ask yourself than others. I'll arrange it myself. But after a while, I will get all the materials ready-sugar, pots, shovels, plates. The experiment has begun! When I turned on the gas stove, I secretly put a spoonful of sugar (a spoon for cooking porridge) in the pot without telling grandma. I followed my mother's cooking style and kept stirring with a shovel. After 30 seconds, 50 seconds, 1 minute, the sugar began to change, first yellow, then dark orange, and finally black. I put the paste sugar into the bowl and took a sip. Bah, I immediately spit out the caramel because it was too bitter. "Why is the sugar burnt, and it turns black and bitter?" I asked the "silent teacher" with this question-or a science book. It says: White sugar becomes bitter after burning because when heated, the "hydroxyl" in white sugar combines with hydrogen atoms to form water, which evaporates when heated, leaving black carbon. In this way, the color changes from white to black, and the taste changes from sweet to bitter.
When I did this, I thought of a problem-sugar will turn black and bitter when burned. Is it poisonous? I checked the computer immediately, and it said-whether it is white sugar or brown sugar, it will become another substance after burning, and the process of becoming another substance is chemical change. The sieve we eat in our daily life is harmful in theory, but eating some with food will not do much harm to people. Seeing this, my hanging heart fell to the ground.
"I think it's an armchair strategist. I don't know if it should be done." Students, there is science everywhere in life. Be a conscientious person, I believe you will get different results!
Thoughts on reading Popular Science 6 Today, when the head teacher Song released the new magazine Popular Science, I couldn't wait to read it. This is the sixth issue of 20xx, which is rich in content, including desert knowledge, space knowledge and the secrets of plant growth ... Among them, I am most interested in desert exploration, with pictures and texts, which is full of interesting knowledge: the causes of desert are varied, various types of deserts, plants in the desert, animals in the desert and so on. What shocked me most was the essay "Worried about Desertification", with a picture, which said: Desertification is an arid and semi-arid area. Due to the influence of natural factors and human activities, the ecosystem was destroyed, which made the original non-desert area have a similar environmental change process. The land affected by desertification accounts for 4 1% of the whole land area. If desertification in these areas is further aggravated, food supply and oil supply will become unstable, which will cause serious world problems. After reading this, I thought of a text I just learned this semester-"The Lark's Wish", which said that people's deforestation led to land desertification, yellow sand flying all over the sky and rivers flooding ... How terrible!
So I hope people must protect every inch of land under our feet, not only can't cut down trees casually, but also plant trees. welcome
But many people have realized this and started to take action. They not only planted flowers and trees in arid areas, but even turned desert areas into beautiful places.
Beautiful home. If you don't believe me, please read the text oasis in the desert.
7. Our childhood is a book or a world, our childhood is a scientific world, and our childhood is an imaginary world. I am no exception.
This summer vacation, I watched popular science. There are many contents in the science bulletin: exploring the desert, introducing the desert and the science and technology information station, giving us more knowledge. I am a little scientist, and let us see more students' inventions. Among these sections, I like cool new products and popular science animation relay best. Among the cool new products are flying cars, strange USB flash drives and strange mobile phone cases. Let me introduce them to you! Flying car is a kind of air-road dual-purpose car with slim appearance and light weight. It can fly in the sky with the help of rotor. He needs a runway more than 150 meters long. This flying car is very powerful, with a speed of 180 kilometers per hour! Strange USB flash drive looks like a toothbrush. Put it in a box the size of a U disk, remove the brush head, turn it over and connect the box to use. Just put the brush head in the box when you are out. Strange mobile phone case is like half a mug. It is not only novel in appearance, but also very practical. The handle of the mug is a bracket, which allows the mobile phone to be placed horizontally or vertically at 45 degrees and 70 degrees. It's much easier to watch videos like this.
The relay of science animation tells us the secret of Nocturnal Animals. At the weekend, Lu Xiao and Xiaonuo came to the zoo. They know that there is Nocturnal Animals in the little beast exhibition hall. Nocturnal Animals sleeps during the day and moves at night. Turn off the lights at 9 am. They're leaving! How to move in the dark? Everyone is very strange, because the eyes reflect light. Speaking of Nocturnal Animals, I remembered one thing. That time, I was at school and found a kitten sleeping in front of my house. I started meowing like a cat. The kitten left at once. I went to call him again, but this time he ignored me and I left. If I had known it was Nocturnal Animals, I wouldn't have woken it up.
Reading can tell us many interesting things. We should read more books and know more things in the future.
8. You must have seen a lot of "100,000 whys" about science. I read a book called Science Public, and I liked it very much. I was particularly interested in the desert mentioned in it.
Speaking of "desert", what kind of scenes will come to your mind? A barren land, a dead world without living things? Is that really the case? In fact, there are wonderful natural landscapes and treasure houses of many rare creatures here. Now let's travel to the wonderful desert with curiosity! Turning to the first chapter, we find that there are many different deserts, such as low latitude desert, subtropical desert, inland desert, coastal desert and so on. But the desert also has masterpieces, and the beautiful sand dunes formed by the wind are worth seeing! It will snow in the desert! It's strange that Xinjiang people wear cotton-padded jackets in the morning, gauze skirts at noon and cool watermelons around the stove at night! Why is this happening? There are succulents and groundwater plants in arid areas, and groundwater plants are easy to die, while succulents are the opposite. Cactus has the characteristics of dormancy in dry season, and when rainy season comes, it quickly absorbs water and grows again. Centurium only grows two leaves in its life, but each leaf can live for a hundred or even a thousand years. Mangrove grows in the arid area of China and is an important feed for camels in the desert. Camels with two humps store fat in their humps. There are only a few hundred wild bactrian camels in the world, facing extinction crisis.
In the desert, when it rains, not only can plants grow, but also lizards can lay eggs.
This book let me know a lot about the desert, and also let me know that the desert is not a barren land, there are many plants and animals growing in it.
My favorite book is Science Popular. This is a magazine about science and intelligence.
There are many common sense of life in popular science, such as: which nail grows fast, (. Why can't you see the hair on your face, why the sugar will change color if it is left for a long time, why the fruit has fragrance, and why people feel hungry and full ... There are also some interesting sections: cool new programs with pictures and words on them, such as a red light bulb with blisters on it, which is actually a bottle of drink. There are Xiao Lu's crossword puzzles, intellectual challenges, eye competitions, why science-a wonderful world, and why science-faces problems.
The smallest frog on the earth is 9 mm long, smaller than chocolate beans: although the extinction rate of species is getting faster and faster, some new species have been discovered one after another. Scientists have discovered two new kinds of frogs in Papua New Guinea. They are not as big as chocolate beans, but they are about 8.5-9.0 mm long. These two newly discovered species are not only the smallest known frog population on the earth, but also the smallest quadruped or quadruped vertebrate on the earth. Anyway, this paragraph is very interesting. This is the tiny part of 1 science popularization. Go and have a look if you are interested.
There are also some puzzle games in popular science, such as maze walking, crossword puzzles and eyesight games ... which can make people relax and make themselves very relaxed. There are some cartoons at the back of the book, which can help you learn scientific knowledge. There is no pressure to read.
If you are under pressure or have any troubles, I believe "Popular Science" is a good choice. It can make you wander in the joy of the universe and immerse yourself in the future world, but improve your scientific knowledge.
I didn't like reading science books at first, but once my father ordered a science book for me, but when I got it, I thought there was nothing to read, so I left it in my desk. However, in the reading class, the teacher asked us to read by ourselves instead of going to the library to read. Because of the rain, I didn't go to the library, so I took a book and read it. diary
I read that Taklimakan Desert is located in the center of Tarim Basin in Xinjiang, China. It is the largest desert in China, the second largest desert in the world and the largest mobile desert in the world. The world's land area is 654.38+62 million square kilometers, accounting for 30.3% of the total land area, while the desert area accounts for 10% of the total land area, and 43% of the land is threatened by desertification. Although the desert is beautiful and mysterious, global desertification is increasingly worrying. If we don't protect the earth, it will become a desert ocean sooner or later, which will make it famous.
Cactus has the characteristic of dormancy in drought. When the rainy season comes, they quickly absorb water and grow again. Centurium only grows two leaves in its life, but each leaf can live for a hundred or even a thousand years. Tamarix is the main feed for camels in arid areas of China.
Next, we came to the animal world. I want to introduce two kinds of animals, namely, the two-humped camel and the antelope. First of all, I want to introduce the two-humped camel. The hump stores fat. Because we humans don't protect the environment, there are only a few hundred wild camels left in the world. Finally, let me introduce you to Antelope. Mongolian gazelles mainly live in semi-arid areas and migrate hundreds of kilometers to find water.
After reading this book, I know that life is full of science. We should read more books, which can enrich our knowledge. Only when you grow up can you make contributions to society and the country.
Finally, I want everyone to plant more trees and cut less trees, so that our earth will not become a desert. In this way, our earth will be better.
Comments on Popular Science 1 1 I read the first, second, third, fourth, fifth, sixth, seventh and eighth issues of Popular Science today. The topic is "Report on the Zodiac Dragon!" , "look! God's gift is flying, life in the ocean, life is different, adventure in the desert and the spinning wind.
I'll start with "Dragon Report on the Twelve Zodiacs! This book tells some dragon legends for the first time. One of the stories is called "The Immortals Control Water to Change Dragons". In China, the earliest official record of dragons is in Shan Hai Jing. It is said that in ancient China, floods lasted for 22 years, and Wang Yang was everywhere. People have no fixed place to live, no livelihood, and the population is rapidly decreasing. At that time, Emperor Yao called together the leaders of various ministries and begged the Heaven Emperor. He doesn't care about the suffering people below, and he doesn't care about people's pleas. The tragic experience of man touched the magic gun. What can be done to stop the flood? At this time, a turtle climbed out of the water and said, "There is a kind of treasure in the sky called' evil soil'. As long as you can get it, you can stop the flood! "The emperor didn't agree, so the gun was stolen.
The gun dispersed the fallow, and it stopped the flood. But it was soon discovered. The Emperor of Heaven killed him, too. Three years later, his body gave birth to his own child. As soon as I was born, I became a dragon and flew away. This is the earliest record of dragons.
There are also some wonders in popular science. Jin Mu will accompany the moon on February 26th, Venus and Jupiter will meet at dusk in March, Perseid meteor shower will occur on August 12, and Gemini meteor shower may erupt on February 14.