Excellent scientific composition 1 Science is the driving force of human progress.
Science is indispensable everywhere. Without science, our life will be very difficult. However, science is also a double-edged sword, both good and bad. Therefore, the scientific spirit is beneficial to the people, not damaging their lives and property.
In the book Science and Invention, the doctor is a great scientist, but his invention experiments often end in failure. Of course, he also has great masterpieces, such as inventing a robot that works hard and often cleans up the mess for doctors, and the creator of a machine that can travel through time and space. The doctor's spirit of perseverance and never giving up is worth learning.
In the past, we used to wash clothes with washboards, which took a lot of effort and would be worn out if our hands were not adjusted properly. However, in order to wash clothes conveniently and quickly, scientists invented the washing machine, which benefited mankind.
In the past, it was very laborious for people to cook and make a fire in a big pot. Scientists invented electricity and gas for the convenience of cooking, so that human beings can cook with electricity and gas in the future.
Once upon a time, in a secluded mountain village, a woman gave birth to a baby and died two days later. The neighbor's child has epilepsy. The villagers say that eating the meat of a dead baby can cure all diseases. Instead of burying the baby, the neighbor cut off the baby's limbs and meat and made soup for the child to drink. Later, the police came and the neighbor was convicted of "insulting the body". Even after death, you should not insult him. Because the neighbors were too superstitious, they paid a painful price.
Our life is inseparable from science, and we all need scientists with conscience. We should carry forward the scientific spirit and lead our lives with science.
I am an ordinary pupil, neither tall nor short, with long braids, but I love science very much.
I love reading popular science books, including Juvenile Science, Juvenile Science Pictorial and so on. I think these books will be fascinating and often forget to eat and sleep.
I like doing some small experiments very much. I remember once, the teacher said, "Put a flat ping-pong ball in hot water and it will expand." I am curious. When I got home, I deliberately squashed the table tennis and put it in hot water. So I waited and waited, waiting for a miracle to happen. After a while, I took out my table tennis and looked at it. That's great. Table tennis is really bulging.
I think, what an abstruse science this is! It needs my constant pursuit and exploration. The success of this experiment greatly aroused my interest in science. Endless scientific mysteries attract me like a magnet.
As long as I love science since I was a child, study science and study hard, I will definitely become a scientist when I grow up.
If I were a scientist, I would invent a time phone. It can open the past and the future. I will call me with it in the future and ask if I will be a great man in the future and if my invention has been recognized by everyone. I also want to ask if I am a basketball player and have good physical fitness. I will also ask what the future world will look like, will it be prosperous or broken? Will also call me in the past, ask him all kinds of memories before, cheer him up and recall the beauty of childhood!
If I were a scientist, I would invent a machine that can travel through time and space. I will go back to the dinosaur era and take pictures of dinosaurs. I will go back to the Stone Age and bring back the things used by people of that era to study. I want to go back to the Tang Dynasty and see how Li Bai made poems, and "raise a glass with Li Bai"!
If I were a scientist, I would invent a glove. Don't underestimate this glove. If it encounters a bad guy, it will automatically enter the defense mode and knock the bad guy to the ground. It can also classify all kinds of books, just like a portable library!
If I were a scientist, I wouldn't invent anything harmful to mankind, but I would encourage other scientists to think about the future of mankind instead of thinking about those crooked things.
If I were a scientist, I would think of others, not just myself. I like to listen to the students' reading sounds, and the serious and focused expression will make me laugh.
If I were a scientist, I would try my best to carry forward the spirit of scientist, which is an indomitable and brave spirit of innovation.
I wish I were a scientist!
This is a morning with fresh air and clear sky. We got up early in the morning because the school organized a spring outing on Thursday. We were so happy that all the snacks went to the classroom.
We got on the school bus and found a seat. The school bus started, and we started happily. On the way, we felt the warmth of nature. Looking at the tall trees, a smile appeared on my face, because I saw them as if to say, "Have fun!" " "
When we got off the bus, we saw how big it was and how beautiful it looked. We lined up to go in. After grouping, we started our free activities. Under the leadership of the group leader, we played various games and went to see a movie. This is a terrible three-dimensional movie. The dinosaur in the original movie wanted to eat other food, but as long as you put on those glasses, you felt that you wanted to eat yourself, which scared me to death.
We also played a game called "get my book back", which was actually just a computer game. Some people may find it boring, but it's actually very interesting. We also went to the book corner there. There are not many books there, but those books are very cultured. For example: Journey to the West, Opium War ... Those books all contain interesting knowledge. The small book corner has brought us a lot of joy and knowledge, and we hope that the book corner will last forever here.
It's time. We got on the school bus. On the way back to school, I kept thinking, when can we go again? Because it is more beautiful than I thought!
Last Friday, when the bell rang, Teacher Sun came into the classroom with a pair of human bones. The classroom suddenly exploded, and some students widened their eyes and made a frightened look; Some quickly put their hands over their mouths, so scared that the atmosphere did not dare to come out; Others simply left their positions and screamed loudly: "Wow, that's terrible!" Although I watched four movies "Death Comes", I still feel chilling in the face of this skeleton. Teacher Sun habitually took a wooden ruler and began to "suppress". When the class was quiet, he began to attend class. Needless to say, today's theme, as you guessed, is "human skeleton".
Teacher Sun pointed to the human skeleton and told the names of various parts vividly. What impressed me most was the skull and pelvis. "Look, this is the skull. Although thin, it can withstand great pressure like an egg. Because its thin shell can distribute the pressure evenly to all parts, it protects the brain tissue well. Pelvis, because it is shaped like a washbasin, is called pelvis. It is a' big man' in 206 bones. " Teacher Sun's explanation was lively and interesting, sometimes interspersed with a story of Sun Bin digging the patella, and sometimes swinging the bone to "revive" it, which made the students laugh. Near the end of class, Mr. Sun suggested that interested students can have a close contact with the skeleton. I hurried forward to see what had happened. At this time, I have lost my original fear of skeletons. On the contrary, it attracted me as deeply as a magnet, and I kept exclaiming in my heart: "So that's it!"
In today's science class, Teacher Sun discussed another question with us: "What's the use of studying bones?" Students with active thinking began to express their opinions, and some said, "Studying bones is of great use to medical research." Some said, "Studying bones is also helpful for archaeology." Others said: "Studying bones is good for how to avoid physical harm." Teacher Sun nodded frequently after listening to the students' answers. I thought, "studying bones will also be of great help to improve athletes' physical fitness and sports performance." "
Science class is so interesting! I really like Mr. Sun's class!
When we were young, we often loved fantasy. Some people want to be doctors, some want to be mayors, some want to be painters, some want to be … and I just want to be a scientist.
If I become a scientist, I will invent vaccines, because I see some people catch a cold in winter, some people suffer from heatstroke in summer, and some people suffer from influenza A (H 1N 1) and hand, foot and mouth disease. I hope this vaccine can cure all diseases, including those that cannot be cured now. Older people injected with this vaccine can be as energetic as when they were young; Patients injected with this vaccine can not only recover, but also won't get sick in the future. As long as everyone is injected with this vaccine, no one in this world will get sick.
If I become a scientist, I will invent an automatic cooking machine. So that children can cook and eat by themselves when they are alone at home. Besides, I think my mother is too busy at work. With it, mom can relax. As long as you put the vegetables in, you can clean, cut and cook them yourself.
I also want to invent many things.
If we invent more and better things, our life will be better!
If I were a scientist, I would build a three-star solar car.
Why do you say land, sea and air? Because it can not only travel on land, but also fly in the air. Just press the white button, a helicopter propeller can protrude from the hood of the car, and it can fly safely.
If you are afraid of being too high in the air, you can press the blue button, it can stop flying, put away the propeller, the tire becomes an ejector, and the car can float on the water. You can also dive and dive below 100 meters.
If you want to go back to land, just press the green button and the car will change back to its original appearance. And the car doesn't consume gasoline and electricity at all, because it only needs sunshine, so you will definitely ask, what should I do if it rains or is cloudy? Don't worry, he can store sunshine on sunny days and use it as backup energy on cloudy days.
If I were a scientist, I would like to build a home management robot, so that things at home don't have to be taken care of. If you are hungry, just let me know. This robot can help you prepare food, and it only takes 5 minutes at most.
I also want to invent many things so that everyone can experience the progress of science and technology, but to be honest, what if it is just what if? After all, if we want to turn it into reality, we must study hard to achieve tomorrow's achievements!
If I were a scientist, I would like to invent a spaceship that can sail into the universe and build a building that can withstand earthquakes and tsunamis, but I can't reach the sky in one step. I'd better invent the universal garbage disposal robot needed in my life first.
The general garbage disposal robot is called small robot for short, because its size is similar to that of us adults. Although small, it can be very powerful. Its main fuel is light energy, and the sun during the day, the moon and stars at night are its fuel providers. If it is always cloudy in recent days, it can also temporarily replace light energy with its own energy reserve. It's just that this little robot also needs an assistant, that is, the city should set up a fixed garbage drop point. This landing point has mutual induction with the small robot. As long as someone throws garbage, the system will contact the nearest small robot and deal with it according to the items classified by human beings until later.
The little robot has a big stomach, and its stomach can turn waste into treasure. The little robot will clean up those things that it can't digest, and then put them in the centralized garbage disposal room for unified treatment. And those things that it can digest, it will eat and process in the stomach, and these things will become gases beneficial to the human body and then be released. Doing so can not only save labor, but also save energy and protect the environment. It's killing two birds with one stone!
If no one throws garbage, the little robot will not be idle. It sometimes cleans and checks public facilities, sometimes cleans roads, and sometimes extends its retractable arm to the tree to deal with the garbage blown to the tree by the wind. We no longer regard it as a robot. It is our good partner. Let's build a better home together.
Do you realize the power of science when we watch interesting cartoons, play fascinating computer games, sit on fast trains and answer overseas calls? Science has not only changed the world, but also changed our lives. Science is around us.
In 2 1 century, science will become human life. Science will work miracles. If you don't know science, you can't survive in this society. If you have a scientific seed and cultivate it carefully, it will take root and sprout with time and bear countless fruits. We should study science, love science and show it.
Once, I watched Liu Qian perform magic on TV. I followed suit and prepared paper cups, candles and lighters. I took half a glass of water with a paper cup and lit the candle. Carefully pick up the paper cup and gently put it on the flame. The next time, I stared at the paper cup, waiting for a miracle. 1 minute, 2 minutes, 3 minutes passed so slowly, just like an old man walking slowly with a cane. My hands are sore and my eyes are numb, but the miracle still hasn't appeared. I don't think it can be fake! At that moment, I suddenly felt a hot wind blowing across my hand. I looked down and a miracle appeared! The water is boiling. I'm surprised and happy. I looked at the bottom of the cup carefully. Oh, my God, it's intact. Another time, I heard the teacher talk about the five-pointed star in the apple. I thought to myself, how can there be a five-pointed star in an apple? If so, my curiosity will come up. I want to go home and cut it to see if there is a five-pointed star in the apple. When I get home, I pick up an apple and cut it in the middle. At first glance, there really is a five-pointed star.
I said,' Yes, science has created miracles. We should have a better understanding of science, which enables us to show our inventions in our daily life and explore and pursue more little-known secrets in nature.
10 If I were a scientist in the future, I would make clear the answers to all the questions in the world, and then declare that there will be no more questions left for human beings in the world, so that human beings will say a few simple and correct answers when they see the questions. No matter what the question is, as long as it is a question, as long as it is seen, human beings will tell the correct answer.
If I were a scientist in the future, I would explore the mysteries of the universe, why we can float in the universe, why the meteorite Locke is like a meteor, and why all the galaxies revolve around the sun. I want to know all these answers.
If I were a scientist in the future, I would invent something that humans often can't think of, that is, the electric fan. Unlike those big fans we use at home. This electric fan is small and bottled, so you can take it with you at will. There are two buttons on this electric fan, one is red, the other is green, the top is on and the bottom is off. At school, you are so hot that you can take it out as a fan.
If I were a scientist in the future, I would invent a car. This kind of car is not an ordinary car. It has a special function. In case of flood or fire, a protective film will automatically appear outside it. This protective film looks transparent, but it is strong. The car I invented will not only pollute the environment, but also purify the air!
With the continuous progress of science and technology, I believe my dream will come true.
Excellent scientific composition 1 1 I have loved science since I was a child, because science can achieve everything:
Science can invent "sonic running shoes". As long as you can wear these shoes, your running speed can be increased by 10,000 times. If I am at home, it only takes a few seconds to get to the park; If I am in Lhasa, it only takes a few minutes to go home.
Science can invent "fully automatic computer". This kind of computer can float in the air, which is convenient to carry around and can be touched. As long as I say QQ, all QQ numbers will appear on the computer. This kind of computer will emit air conditioning in midsummer; If it is in the middle of winter, it will emit heat energy; If it is in spring or autumn, it will give off fragrance.
Science can invent "automatic robots". This robot can cook, cook, wash clothes and so on. But its best function is cooking. The dishes it cooks are more delicious than those cooked by five-star chefs.
Science can invent "war-class sports cars". Such a sports car runs at 100 million kilometers per hour, so people don't have to be late for work. The most unexpected thing about this sports car is that it can run on the road, swim in the water and fly in the sky. It's really complete
Although these things have not been invented yet, I believe there will be a bright future!
If I were a scientist, I would invent the electric light. This is not an ordinary electric light, but an anti-myopia electric light.
When you do your homework, it will help you time. After one to forty minutes, the light will say, "Time is up, please have a rest." 10 minutes later, you can write again.
If your eyes are too close to the book, the electric light will "sting" you and make you raise your head consciously.
If I were a scientist, I would invent an animal and plant language machine. Put on this earphone, and you can talk to animals and plants. For example, when I see a small flower, I will say: Hello, my name is Shan Shuo. Do you like listening to music? When I see a little turtle, I will say, little turtle, what are the little black dots on your back for? So I can know what animals and plants are thinking, and they won't be lonely.
If I were a scientist, I would invent a spaceship to fly farther and let people travel to other planets.
Can I really become a scientist?
Excellent scientific composition 13 "flowers turn red! The flowers have turned red! "I shouted in surprise.
That day, a strong wind blew off a white chrysanthemum in the yard. I saw it and put it in the red ink bottle that was about to bottom on my desk. The next day, when I went to see it again, the flowers had turned red.
"Could it be red ink?" I said to myself.
At this time, my mother suddenly came up to me and suggested, "Do an experiment and you will know!" " "
I nodded, ran to the yard and cut another chrysanthemum. I am very distressed, but for the truth, I have to give up what I want.
When I get to my desk, I get my tools ready. First, I sliced the stem in half. Then, I put the red ink bottle and blue ink bottle side by side. Finally, I put half the stems in the blue ink bottle and the other half in the red ink bottle.
Time passed by, and suddenly, my mother shouted, "The flower stems have changed color." Hearing the sound, I looked at it carefully, and sure enough, the stem was red and blue, and the color was still looking for the stem to climb. I opened the petals and found that the inside was also discolored.
After a while, the white chrysanthemum turned into a strange flower, red on one side and blue on the other.
In fact, life is full of mysteries. As long as you are willing to explore, you will find it.
Excellent composition in science 14 "5" is not strange to students, but have you found the law of multiplying any number by "5"?
I think it is easier to multiply an integer by five. But if the quantity is large, it may not be easy. Try my method-a number multiplied by 5 equals this number multiplied by 10 and divided by 2. Although it's a little troublesome, it's not easy to make mistakes, and it can also be calculated by mouth. It not only improves the accuracy, but also saves time.
This method is also good when the decimal is multiplied by 5. For example, 1, 6×5, students usually have to line up vertically, but with my method: 1, 6×10&; Leather; 2. First get 16 by decimal shift method, and then calculate 1 and 6× 5 = 8.
This method is not only useful for 5, but also can be multiplied by 50 or 500. 50 times 100 equals 2, and 500 times 1000 equals 2. ...
If multiplied by 0 or 5, it will be reduced by 2 times and multiplied by 0. 05 reduced by 20 times and so on.
Is my little trick not good?
If you look closely at life, you will find that everything in life hides science. However, we all have no heart. It was not until I read a popular science novel that I discovered the wonder of nature.
Since reading the science bulletin, I have learned other little knowledge, not only the details of life, but also the introduction of new technologies and the expansion of my horizons, which makes us marvel at the development in front of us. In the squirrel column, science has been updated for a long time, and it has no fun symbol, but it is covered with lush and lively colors, which emphasizes the combination of music and reason. Every time I look at it carefully, I will be shocked by the humorous tone, which makes me have a pair of keen eyes to observe this interesting world when my brain is relaxed.
One issue of Science Magazine mentioned drinking beer in our life. Every time we open the beer lid and pour a glass, there will be bubbles, which is very troublesome. Oh, in the beer. When the bottle is opened, the pressure drops. When released, the foam will leak out and form many bubbles. After reading it, I suddenly realized that beer also contains so much knowledge. I not only see through magic, but also know that science is everywhere. I must make good use of it to solve all kinds of things in my life. When a pupil who invented simple machinery in many experiments appeared in the column, my heart began to shake and started my scientific fantasy, but after two or three failures, I quit. But ... I didn't know it was the crystallization of the author's online failure until I read it below. From then on, I understand that persistence is the crutch of life, and with it, you can get out of failure.
Primary school life should challenge the agility of thinking and be strong in everything. As long as you have persistent willpower, you can get out of failure.