I had hoped that I was a spring silkworm, chewing large pieces of mulberry leaves and spitting out useful silk; I also dream of becoming an eagle, soaring in the vast sky, but suffering from no strong wings.
"100,000 Why" is the first science book I came into contact with. The world of plants is competing with each other, the animal kingdom is showing its elegance, the mystery of human function is revealed, and the world of history is so magical ... many questions that I don't understand are answered vividly and I know a lot. With the growth of age, I unconsciously have new questions in reading: who discovered this knowledge and how to find the answer to the question.
Finally, one day, several teachers from Hunan Science Publishing House recommended me several series of scientific cases, including 10 thought-provoking scientific problems, 10 shocking scientific discoveries, 10 inspiring technological inventions and 10 wonderful scientific debates, which made me appreciate the beauty of science and scientists.
The teacher told me that from the mysterious nature to the life around us, and then to our bodies, there are hundreds of why. Students need to have an indomitable spirit of exploration, a scientific attitude of repeated experiments, find out the same regular way of thinking, and you can also find their answers.
With a good book and a teacher's reminder, I began to ask, discover and answer questions related to my daily experience. For example, I recently went to the hospital to check my eyes, and I dropped a mydriatic agent. My eyes are always narrowing during the day. I want to find out why mydriatic drugs have such "side effects" I repeated the feeling of staying in different places, compared the difference when I didn't drop the medicine, and concluded that the pupil space became larger after dropping the medicine, so I couldn't adjust the size automatically, so I could only adjust the light by my eyelids, so I could only squint under strong light. My mother praised me for really reading science books, and a kind of hope sprouted in my heart.
Food is the energy source of human body, and good books are the nourishment of human spirit. Energy can make the body strong, and nutrition can make the mind grow. Science has given me a new sky, where I am a young eagle that began to spread its wings.
② 530 essays on science stories.
You can check it online.
I wrote a 600-word composition about stories in science.
Today, my mother bought me a set of parts for a model airplane. I jumped three feet high with joy, and a lovely little face turned into a big red peony in the blink of an eye, and I still twisted * * *, not to mention that happiness. In the afternoon, Deng Sai and Bai Fan were invited to help me assemble the model.
The work is ready. I divided the "tasks" for Bai Fan and Dunsai and started to act. I glued the deck with universal glue first, and then installed the cab. By this time, Deng Sai had finished playing the five-star red flag. Then I glued it on and started to make the hull. I put the bottom of the boat together with two bottom plates, and then put two side plates on it. Hmm! The basic shape of the ship is ready. Then, I fixed the hull with screws. At this time, the screw seems to be playing hide-and-seek with us, but it can't be found. Suddenly I thought that Zhang Yunchao had screws at home, so I ran to his house and asked for some. I came back sweating like a pig. But I didn't say anything, so I screwed it right away. In the end, only those tiny parts need to be installed, which is a big problem. I was just about to give up when Bai Fan said to me, "Shao Quanlin, didn't your mother tell you! Don't give up halfway, or you can't do anything well. Come and teach you how to do it. " After some guidance from Bai Fan, I realized that this was Zhang Fei eating bean sprouts-a piece of cake. Three times five divided by two is done. Take a closer look, ha! What a style! In order to be more realistic, we installed several small windows in the cockpit and made an observation room! We cheered and put the boat into the water to see its heroic posture on the water, but unexpectedly, the boat did not move, as if it were against us. At this time, Deng Sai shouted: "Ah! I forgot to make the motor! Sorry, hehehehe! " Both Bai Fan and I stared at him. Can also contribute, and then put the copper core and iron sheet in Madanes, and then screw the motor and install it on the ship. Then, install cannons and planes. Ha! A model aircraft carrier was born. We put it in the water and saw it swimming happily. ...
④ Story writing in science class.
Today, we had a scientific experiment class in the laboratory. This is the third time that our class has taught in the laboratory, and the students are very excited.
When I came to the laboratory, I saw a big fish tank filled with water every other table. I've been thinking for a long time, and I don't know what class the science teacher will give us today.
The class began, and the teacher asked everyone to do the experiment according to the steps. First of all, I blew a lot of air in a big bag, which made the bag swell. Then I tied a fast knot in the bag and put it aside. Later, he took out two glasses and two cups, filled one of them with water and poured it out, then immediately covered the cup. In this way, a cup of fresh air is packed. Then, he took out the straw and the bulging bag, put one end of the straw into the bag and the other end into the cup mouth in the water, grabbed the bottom of the cup, and asked a classmate to squeeze the air from the bag into the cup, then poured out the water and covered the cup. In this way, it is a cup full of waste gas.
At this time, the teacher lit two matches and put two cups at the same time, asking us to observe which match in the cup went out first. We stared carefully and found that the matches in the cup filled with waste gas went out first, and the burning matches in the cup filled with fresh air went out later.
It turns out that what the science teacher is going to tell us today is that the burning fire lasts longer in the fresh air with oxygen.
A scientist's story composition had better be 600 words.
Today, grandma bought me a book that I dreamed of-The Story of a Scientist. In this book, I met many famous scientists. The first is foreign countries, with Edison, the "king of invention"; Nobel that cannot be bombed; Watt, inventor of steam engine; Columbus who discovered the new world; Newton who worked selflessly ... I am most proud of our scientist in China, Mao Yisheng who built bridges all his life; Zhang Heng, a well-read and versatile person; China struggling for life; Meng Tian, the general who invented the writing brush ... Mao Yisheng attracted me the most. Mao Yisheng is an expert on modern bridges in China. During the Dragon Boat Festival, Mao Yisheng's hometown held a dragon boat race, and the Wende Bridge on Qinhuai River was crowded with spectators. Mao Yisheng, 1 1 year-old, has been looking forward to today, but he fell ill the night before and only pinned his hopes on his friends. The little friends ran anxiously: "Not good! Wende Bridge collapsed! " Mao Yisheng asked, "Are people safe?" "Hundreds of people died, not to mention how miserable it was under the bridge!" From then on, Mao Yisheng studied bridges even harder. No matter what information and pictures there are about the bridge, he will collect them like a treasure. Over time, he finally became a famous bridge expert. After reading this story, I know how difficult it is to become a scientist. I am proud that there are so many excellent scientists in our country. At the same time, I also understand that everything you do will be successful as long as you are willing to work hard, not afraid of difficulties and keep making progress.
⑥ Ask to write a 600-word composition about science fairy tales.
Science Fairy Tales: The Story of Water Drops
The bright sunshine shines on the boundless sea, shining on mother hai and her children, which is warm. The small drops of water spread out, so comfortable! At this time, he felt that his body was light and he was about to fly. He shouted, "Mom, stop me! Hurry up, mom! " Mother Hai smiled and said, "Don't be afraid, son. Go, you will come back again. "
Small drops of water rise slowly. He looked down at the sea and said, "Ah, my mother is so beautiful!" " "I saw the sea like a sapphire, white waves in clusters, as if it were a bouquet waved by a welcoming crowd. The water droplets continued to rise and met Haiyan. He loudly said to Haiyan, "Hello! Sister Haiyan! Listen to your mother, you are brave and dare to make waves! " Haiyan smiled and replied, "You will be braver than me. Goodbye! "
The water drops are getting lighter and lighter, flying into the air and meeting the eagle: "Hello! Uncle Eagle, I really envy you. You fly so high! " The eagle pressed his forehead: "Little smart card, your mouth was coated with honey, and you said sweet words, which made your uncle dizzy." Don't worry, you will fly higher than me! Goodbye! "
Droplets fly around and fly to the clouds. He was lying in the cradle made for him by Miss Baiyun. It is soft, just like falling into a pile of soft cotton. It is warm and comfortable.
Droplet looked down, ah, a long "dragon" entrenched in the mountains, very majestic; A wide "silk" is littered with broken gold, which is very beautiful. The water drop asked Miss Baiyun, "Miss Yun, what is that' dragon'? What is that' silk'? " The clever Miss Yun said, "The Dragon is the Great Wall of Wan Li, and the Silk is the Beijing-Hangzhou Grand Canal. These two huge projects are the crystallization of the sweat and wisdom of ancient working people. " ……
Shuidi listened carefully and fell asleep unconsciously.
I don't know how long it took, but the little water drop woke up. He felt so cold that he couldn't help shivering. He quickly asked Miss Yun, "Miss Yun, why is it so cold?" Miss Yun replied, "Uncle Cold Air is here. As soon as he comes, you can go home. " Hearing that he will go home soon, the little water drop jumped with joy.
After getting in close contact with Uncle Cold Air, Little Water Drop found his body getting heavier and heavier. Finally, he and many brothers and sisters fell from the air to the sound of Lei Gonggong's drums and his mother-in-law's gongs, and returned to the arms of Hai Mama, who said affectionately, "What's the matter, baby?" I told you you'd come back. "
The little water drop said excitedly, "Mom, I see a lot of things!" " "Mother Hai said softly," I know all this, son. Your experience has been told by Rainbow Girl. "
Water droplets are very surprised. He looked up, and I don't know when a gorgeous rainbow appeared in the sky.
Echo Valley: Droplets fly, because the sun rises and water turns into steam. Small drops of water saw in the air that "the sea is like a sapphire, with white waves in clusters, as if it were a bouquet of flowers waving to welcome the crowd." What a beautiful writing. Droplets fly to the clouds, fall asleep, turn into clouds, turn into rain when they are cold, and return to the embrace of the mother sea. This fairy tale vividly tells us the three states and changing conditions of water, which is really remarkable.
⑦ Write a 600-word science and technology story for the first grade composition.
Zhu Guangya: The brightest star in the distant sky.
He did one thing in his life, but it was the most magnificent force in the blood of New China. Fine deduction of physics is fun, and you don't have to stumble in this life. He is the brightest star in the distant sky.
Deeds 2011On February 26th, Zhu Guangya, a famous nuclear physicist and founder of "Two Bombs and One Satellite", died of illness. After the fall of the superstar, the "Star of Zhu Guangya" named after him always shines in the sky, inspiring future generations on the road of science.
From the late 1950s, Zhu Guangya spent most of his life in the nuclear field until his retirement in 2005.
"The elders of the motherland have placed infinite hopes on us. What are we hesitating about? " -Zhu Guangya, who is still studying at the University of Michigan, organized and drafted an open letter to students studying in the United States after hearing the news of the establishment of the New China.
Letter ",and then resolutely choose to return home, first to teach in Peking University, then transferred to the nuclear weapons research institute.
1964, the first atomic bomb developed in China exploded successfully. Zhu Guangya looked at the mushroom cloud leaping in the air and couldn't help crying. The road is blue, in order to open the forest. That night, because of his strict style, he got as drunk as a fiddler. Three years later, Zhu Guangya and his colleagues brought China into the era of hydrogen bombs.
Almost all the important nuclear tests were conducted by Zhu Guangya himself, and he won't stop until the problem is solved. When dealing with documents that need to be written or revised, Zhu Guangya tries to explain them in easy-to-understand language. He uses words carefully to ensure that even a foreign letter and a punctuation mark are accurate.
Indifferent to fame and fortune, people around me like to use this word to evaluate Zhu Guangya. 1996, Zhu Guangya received a bonus of 1 10,000 Hong Kong dollars and turned to donate it to China Engineering Science and Technology Award Foundation; 1997, a total of 40,000 yuan was donated to China Science and Technology Development Foundation. The People's Liberation Army Publishing House had planned a series of biographies of national defense scientists, and when they were submitted for trial, he did not hesitate to cross out his name.
Help write a composition about the story of scientists.
Madame Curie
Marie Curie (Madame Curie) was a French-born Polish physicist and chemist.
1898, French physicist AntoineHenriBecquerel discovered that uranium-containing substances can emit a mysterious ray, but failed to reveal the mystery of this ray. Mary and her husband Pierrecurie)*** * * both undertook the work of studying this kind of radiation. They separated and analyzed pitchblende under extremely difficult conditions, and finally found two new elements in July 1898 and February 12.
To commemorate her native Poland, she named one element polonium and the other element radium, which means "radioactive substance". In order to prepare pure radium compounds, it took Madame Curie another four years (MarieCuI7e, 1867- 1934) to extract1o0mg of radium chloride from several tons of pitchblende residue, and the relative atomic mass of radium was preliminarily determined to be 225. This simple figure embodies the hard work and sweat of the Curie couple.
1In June, 903, Madame Curie took "Research on Radioactive Substances" as her doctoral thesis and obtained a doctorate in physics from the University of Paris. In June165438+1October of the same year, the Curies were awarded the David Gold Medal by the Royal Society. In February 65438, together with Bekkerel, they won the 1903 Nobel Prize in Physics.
1906, pierre curie died in a car accident. This heavy blow did not make her give up her persistent pursuit. She fought back her grief and redoubled her efforts to complete their beloved scientific career. She continued her husband's lecture at the University of Paris and became the first female professor at the university. 19 10, her famous book on radioactivity was published. She cooperated with Mou and others to analyze pure metal radium and measure its properties. She also measured the half-lives of oxygen and other elements and published a series of important works on radioactivity. In view of the above great achievements, she won the Nobel Prize in chemistry at 19 1 1, becoming the first great scientist to win the Nobel Prize twice in history.
The founder of radiation science, who suffered from scientific hardships, died unfortunately on July 4, 1934 on/kloc-0 because of years of efforts. She devoted her glorious life to the scientific cause of mankind.
I like scientific composition in grade one.
What is science? "My deskmate asked me with a smile." I ... "I don't quite understand. Asked me in a fog. No, I have to ask my computer teacher ... a great man named Asimov told me, "Science is almost curiosity from the beginning. "What? Curiosity? A group of shots immediately came to my mind: Newton. apple
It was an evening in the late summer of 1666. An English young man walked into his garden and sat under a tree. He began to bury himself in reading. When he turned the page, something was shaking in the branch above his head. One of the most famous apples in history fell on Newton's head at the age of 23. Why did this apple fall to the ground instead of flying into the sky? Newton thought.
It was curiosity that made Newton a scientist I admired.
I told this story to my grandmother, but she didn't know Newton. She told me seriously: "No superstition is science." Oh, science is not superstitious! Another set of shots came to my mind:
James Hope & Marry a Wife
During the Warring States Period, Ximen Bao was appointed as the magistrate of Yexian County. He went to Ye County and asked about the sufferings of the people. These people said, "Because they want to marry Hebo, everyone ran away with their daughters." On the day he married Hebo, Ximen Bao went to the river, and he punished the local gentry and officials with clever tricks. Later, Ximen Bao called on the people to dig 12 canals to divert water from the Yellow River to irrigate farmland, and the fields were irrigated, so the people lived a life of peace and contentment.
I like this story very much and admire Ximen Bao. In this way, science really tells people not to be superstitious.
Not long ago, one of the most exciting scientific events happened to me:
The Seven Gods and Asking for Heaven
On 2 1: 10 on September 25th, 2008, China successfully launched the Shenzhou VII manned spacecraft! At that moment, China was boiling! The world is boiling!
How high is the sky? What else is there outside the sky? When I was a child, I often looked at the sky and asked myself, I dreamed of flying to the sky to see what the moon and stars were like. I know the story of the Goddess Chang'e flying to the moon, but I don't know that this fable has really come true!
I love Shenzhou VII, and I love the scientists who created Shenzhou VII, because it is the increasingly developed science that makes Shenzhou VII fly into space! Oh, great! Science is a magical force that can create miracles!
I love science!
Attending the story composition of scientists.
[Composition of Scientists' Stories]
Mathematician story Archimedes (287 BC ~ 2 BC12 BC) was born in a noble family in Syracuse, and his father was an astronomer and scientist. Under the influence of his father, Asmid was fond of learning, thinking and arguing since childhood. When I grew up, I traveled across the ocean to study in Alexandria, Egypt. He learned philosophy, mathematics, astronomy, physics and other knowledge from Conon of Samos, a student of the famous scientist Euclid at that time, and finally learned from others and mastered the rich Greek cultural heritage. After returning to Syracuse, he insisted on keeping in touch with scholars in Alexandria and exchanging scientific research results. He inherited the rigor of Euclid's proof theorem, but his intelligence and achievements were far higher than Euclid's. He closely linked mathematical research with mechanics and mechanics, and used mathematics to study practical problems such as mechanics. Protecting mechanical giants and trebuchets in the battle of Syracuse is the most vivid example, which strongly proves the truth that knowledge is power. During his study in Alexandria, he often walked along the Nile. In the season of long drought and no rain, he saw farmers laboriously pumping water from the Nile to irrigate the land, so he created a spiral water pump to take water from the river through spiral rotation, which saved farmers a lot of effort. Not only used today, but also the original prototype of all propellers used on water and in the air at present. Archimedes elaborated on the principle of lever in his book On Lever (unfortunately lost). King Syracuse once doubted the power of leverage. He asked Archimedes to move a new three-masted ship full of heavy objects and passengers. Archimedes asked craftsmen to install a set of exquisitely designed pulleys and levers on the front, back, left and right sides of the ship. Archimedes told 100 people to grab a rope in front of the big ship. He asked the king to pull a rope, and the ship actually slipped slowly into the sea. The crowd cheered, and the king announced happily in public: from now on, I ask everyone to believe Asmid no matter what they say! Archimedes once said: Give me a small fulcrum and put a lever, and I can move the earth. If Archimedes had a place to stand, could he really move the earth? Maybe I can. But according to scientists' calculation, if there are corresponding conditions, Archimedes' lever must be 88× 102 1 mile long! Of course, this is not possible at present. What fascinated and admired Archimedes most was that Archimedes discovered a basic scientific principle from the case that intelligence broke the golden crown. The king asked the goldsmith to make a new pure gold crown. But he suspected that the goldsmith had adulterated the gold crown. However, from the point of view of weight and appearance, there is nothing wrong with the finished crown. The king handed this difficult problem to Archimedes. Archimedes thought about this problem day and night. One day, he went to the bathhouse to take a bath. When he sat down in the bathhouse slowly, the water overflowed from the basin. He looked at the overflowing water and suddenly shouted, I know! Actually * * * ran home. It turned out that he had come up with a way. Archimedes put the golden crown in a jar full of water, and some water overflowed. He picked up the crown, filled it with water, put a piece of gold as heavy as the crown into the water, and some water overflowed. He compared two kinds of water and found that the first one overflowed more than the second one. So he decided to mix the gold crown with silver. After the experiment, he worked out the weight of silver. The goldsmith was stunned when he announced his discovery. The significance of this experiment is far greater than finding out that the goldsmith cheated the king. Archimedes discovered the principle that the weight of an object in a liquid is equal to the weight of the liquid he discharged. This principle is named after Archimedes. Until modern times, people are still using this principle to measure the ship's load. In 2 15 BC, Roman general Maceiras led a large army and brought warships to the historic city of Syracuse. Maceiras thinks Syracuse Gu Chenghui Jr. is self-defeating. Hearing the great reputation of the Roman army, the people in the city did not surrender in Kaesong? However, the question and answer of the Roman army was a series of terrible darts, arrows and stones. The small shields of the Romans could not resist countless stones, large and small. They were killed and ran for their lives. Suddenly, countless giant crane-type mechanical giants protrude from the city wall. They grabbed Roman warships, hung them in mid-air, and finally threw them on rocks by the sea, or threw them heavily into the sea. The ship was wrecked and people died. Maceiras was lucky not to get hurt, but he was frightened. He completely lost his pride when he first came and became confused. Finally, we had to order a retreat and sail the boat to a safe place. The Roman army suffered heavy casualties and was stunned by the ancient Syracuse. But where are the enemies? They can't even find a shadow. Maceiras finally said with emotion to the soldiers around him: How? In the face of this geometric giant with hundreds of hands, we have to give up fighting. He threw our warships as a game. In a flash, he threw so many darts, arrows and stones at us. Isn't he worse than the mythical giant with a hundred hands? Archimedes, who is over 70 years old, is a world-famous great scientist. He used levers, pulleys, cranks, screws and gears to defend the ancient city of Sila. He not only used manpower to start the machine for projecting darts, arrows and stone bullets, but also used wind and water power, and used knowledge about balance and center of gravity, curves and the use of force from a distance. No wonder Maceiras easily found the reason for his fiasco. That night, Maceiras approached the city wall overnight. He thinks Asmid's machine can't work. Unexpectedly, Asmid had already prepared short-distance instruments such as trebuchets, and forced back the Roman army's attack again. The Romans turned pale with fear. As soon as they saw the wooden beam or rope on the wall, they ran away screaming: Archimedes came.