for the first one;
"Science", a wonderful thing, makes many scientists willing to devote their life's efforts to it. Many people think that science is far away from us. In fact, science is around you and me.
With the holiday coming, I have more time to myself, so I began to take an interest in scientific experiments.
I did the experiment of "shrinking bones" of eggs. I cooked the egg first, peeled it, then poured half a bottle of boiling water into the empty glass bottle, and then put the egg on the bottle mouth. I opened my eyes wide and observed it carefully, and found that the egg kept shrinking, shrinking and falling slowly, and finally fell into the bottle at once. Although the book says that the egg will definitely fall into the bottle, I am still dumbfounded at the sight, and a little pride arises! "The test was successful!" I can't help shouting. Why can eggs shrink and fall into the bottle? I opened the book with questions. It turns out that with the drop of water temperature, the space occupied by water in the bottle becomes smaller, so the space occupied by air in the bottle immediately becomes larger, so that the air around the bottle will squeeze the eggs and force them to slide into the bottle. Oh, it's not the "bone shrinking" that makes the egg fall into the bottle, but the atmospheric pressure!
Then, I did the "water pressure bubble" experiment. I first poured some washing powder into one bowl, stirred it, poured clear water into another bowl, dipped one end of a toilet paper reel in a little washing powder water, and then put the other end in clear water. At this time, a colorful bubble appeared. I did this experiment again and again and found it really interesting. I don't need to blow it with my mouth. Just dip one end of the toilet paper reel in washing powder water and put the other end in clean water, and colorful water bubbles will appear immediately. I excitedly called my parents to enjoy it, and my parents were amazed. They asked me what scientific truth this experiment contained. I still found the answer from the book: when we slowly immersed the scroll in clean water, the atmospheric pressure pushed the water in the bowl into the scroll, and the air in the shaft was squeezed and gradually rose, thus pushing the washing powder film to bulge. Because the washing powder film has surface tension, it will not break after bulging. I see! I have gained another scientific knowledge.
Dad wants to move two big glasses. He wants me to cooperate with him, but he is worried about breaking them. What should we do? Dad dropped a few drops of water on one glass, and then we carefully covered the other glass. As a result, the two glasses were firmly stuck together. We easily moved two large pieces of glass to a safe place. I'm a little confused: why can a few drops of water stick two pieces of glass tightly together? The book "Science" made me understand the mystery: the reason why glass sticks tightly together is because there is adhesion between glass molecules and water molecules. Adhesion is a powerful attraction between different substances and molecules. Under the action of this force, two pieces of glass stick together firmly and are difficult to separate.
It seems that science is in our life. As long as we carefully observe and ponder, combine books with practice, we can discover scientific principles, so that science can serve our lives and improve our quality of life.
the second one;
everyone is familiar with the word technology. Simply put, science and technology is science and technology. In a broad sense, it refers to the sum of natural science and technology and social science and technology.
since the reform and opening up, with the passage of time, science and technology have mushroomed and are developing rapidly in the motherland. Looking around life, technology is everywhere, and technology is by my side!
Walking on the road at night, there are electric lights to illuminate us; Call a friend and take out your mobile phone at your fingertips; Back home, turn on the TV to watch the news, turn on the computer, and chat with friends; Mother steamed the rice with a rice cooker; Turn on the electric heater; The whole family sat around and enjoyed the delicious food prepared by my mother with an electric frying pan. Do you think we can leave technology anytime and anywhere?
the use of technology is great! For example, if there is no electric car, it will be inconvenient for us to communicate with friends and relatives far away; If there is no EMU, it will be difficult for people to travel everywhere. Without the space shuttle, it would be empty talk for people to go into space; If there were no icebreakers, it would be difficult for us to visit Antarctica. Without space instruments, people landing on the moon will only be an illusion
On the contrary, with technology, our life will become better-with fax, our documents can be easily transmitted instantly! With a robot, it can be in a space that people can't reach; Using laser, you can make fitness equipment; With air-conditioning, even in hot summer, people can feel as comfortable as spring.
It is not difficult to see that all this is what people enjoy!
It can be seen that technology has helped us create a superior living environment; Science and technology have improved our quality of life; Technology is the crystallization of people's wisdom all over the world!
We are in technology, so we should keep learning new technologies!
technology is around us, and we should vigorously develop it! 2. How to write an essay on the topic of "Science and technology are at my side"
When it comes to "science and technology", perhaps the first thing that comes to mind is the cutting-edge technologies such as rocket ascending into the sky, submarine entering the water, suspended train, Shenzhou-8 and Tiangong-1. In fact, technology is not far away from us: when the scorching summer comes, we can enjoy the coolness in a comfortable air-conditioned room; When we are hungry, my mother cooks a delicious meal for us with an induction cooker, a rice cooker and a microwave oven. When we were too busy studying or working to take care of a lot of clothes that should be changed, the washing machine solved the problem for us again … Look, technology is around us.
Going home from school on Friday, sitting in front of TV, listening to pop songs and watching Chinese and foreign news anecdotes have broadened our horizons, enriched our knowledge and made us happy. It's really "knowing what's going on in the world without leaving home".
When visiting relatives and friends, electric cars, motorcycles and even increasingly popular cars show their infinite charm. It won't be long before we can get together with relatives and friends under the breeze.
When we go out to travel, or get on the train and fly in the mountains, we can see the beauty of nature. Or fly in the vast sky by plane, accompanied by blue sky and white clouds; Even sitting on the maglev train, feel the comfort of lightning speed. Technology is really amazing, which brings people a lot of convenience.
The emergence of telephones and mobile phones has made us bid farewell to the era of flying pigeons delivering books and enhanced the communication between people. The popularization and use of computers not only brings people a way to get rich, but also solves many difficult problems in people's lives, and also eliminates the pain of missing distant relatives for people. This summer vacation, my family bought a computer. Through video, my grandmother met her father who was working in Guangzhou. This made my grandmother happy, changed her old malaise, and she was happy all day, and never nagged her father to come back and chat with her again.
Even in our rural schools, computers and multimedia devices are used in the classroom, which greatly improves our interest in learning.
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Watt invented the steam engine, Edison invented the incandescent lamp, Franklin invented the lightning rod, and Bell invented the telephone ... It is the development of science and technology that leads the human society to move forward continuously. Our great ancestors, after numerous experiments, created many miracles for us. Today's science and technology are in full swing, and great achievements have been made in military, medical, aviation and daily life. Cloning technology and nanotechnology are no longer unfamiliar.
We live in the era of science and technology, and we grow up in the life of science and technology. As the founders of the new century, we should set great ambitions and bravely climb the peak of science and technology. Looking forward to the future, the motherland will be a great scenery, and in the near future, our life will be made better by science and technology.
Technology is not only around me, but also in my heart, in my swaying dreams. 3. Science and technology are at my side.
The word "science and technology" is not strange to us at all. Science and technology are at our side, and it has brought us so many benefits. How can we think it is strange? More and more science and technology have penetrated into our daily life, which has benefited us and brought us great convenience.
For example, we all use gas and oil to make fires now. Without technology, wouldn't we continue to use wood drilling to make fires? Then people don't want to eat raw things; Electric light helps us leave the darkness. Without technology, there would be no electric light. Without electric light, we will continue to live in a dark world. So, how important technology is to us! Our food, clothing, housing and transportation can not be separated from the contribution of science and technology for a moment.
There are many scientific products in our home. Mobile phone is essential, it can help us to talk with distant relatives, and then we will feel that the earth has shrunk.
Nowadays, the development of mobile phone technology is amazing. Nowadays, mobile phones can not only talk to distant relatives, but also have the functions of computers and televisions. They can also play games, watch movies and listen to music online. Science and technology have brought us joy. Now computers are constantly being updated. Computers have many functions, and they can also shrink the earth. With computers, we can communicate with each other and know all the new things in the world. As the famous saying goes, "A scholar can know what's going on in the world without going out."
There are all kinds of computers. Notebooks can be taken with you at any time. Learning computers can help children learn. Some computers are only as big as the palm of your hand. Our science and technology are getting more and more developed now. For example, it's the Spring Festival, and migrant workers have to go home for the Spring Festival. The bus is too crowded, and the subway and train are coming to show off. Now migrant workers can get home soon. In winter, people use baking stoves and hot water bottles to keep warm, and the warmth can't last long. Now, some families are equipped with advanced "water air conditioners", which can not only keep the house cool in summer, but also keep the house warm in winter ... Technology has also realized people's dreams: people dream of flying in the sky like birds and traveling around, and now planes come to help; Spaceships and space shuttles have helped mankind a lot. They have helped people to go into space and land on the moon ... The use of science and technology is really great. If there is no science and technology, wouldn't people's life be very difficult? Can people's dreams come true? Without technology, you can't communicate with friends and relatives far away; Without science and technology, it is difficult for people to travel around; Without science and technology, it will be empty talk for people to go into space; Without science and technology, how can we go to the South Pole for investigation? Can we land on the moon without technology? Isn't landing on the moon a daydream? Without technology ... You see, can we live without technology? On the contrary, with science and technology, our life will be very different, and our life will be even better-with science and technology, documents can be easily spread out instantly; With science and technology, hot summer can also make people comfortable as spring; With science and technology, even in the cold winter, we can have warmth ... You see, all this is the result of people enjoying science and technology! Technology has helped us create a superior living environment; Science and technology have improved our quality of life; Science and technology have inserted "wings" for our motherland. 4. composition: science and technology are around me 6 words
Everyone is familiar with the word science and technology. Simply put, science and technology is science and technology. In a broad sense, it refers to the sum of natural science and technology and social science and technology.
since the reform and opening up, with the passage of time, science and technology have mushroomed and are developing rapidly in the motherland. Looking around life, technology is everywhere, and technology is by my side!
Walking on the road at night, there are electric lights to illuminate us; Call a friend and take out your mobile phone at your fingertips; Back home, turn on the TV to watch the news, turn on the computer, and chat with friends; Mother steamed the rice with a rice cooker; Turn on the electric heater; The whole family sat around and enjoyed the delicious food prepared by my mother with an electric frying pan ... You see, can we leave technology anytime, anywhere?
the use of technology is great! For example, if there is no electric car, it will be inconvenient for us to communicate with friends and relatives far away; If there is no EMU, it will be difficult for people to travel everywhere. Without the space shuttle, it would be empty talk for people to go into space; If there were no icebreakers, it would be difficult for us to visit Antarctica. Without space instruments, people landing on the moon will only be an illusion ...
On the contrary, with technology, our life will be better-with fax, our documents can be easily transmitted instantly! With a robot, it can be in a space that people can't reach; Using laser, you can make fitness equipment; With air conditioning, even in hot summer, people can feel comfortable as spring ... < P > It's not hard to see that people enjoy all these achievements of science and technology!
It can be seen that technology has helped us create a superior living environment; Science and technology have improved our quality of life; Technology is the crystallization of people's wisdom all over the world!
We are in technology, so we should keep learning new technologies!
technology is around us, and we should vigorously develop it! 5. Write a 4-word composition on the topic of science and technology around us, thank you < P > for the first one; "Science", a wonderful thing, makes many scientists willing to devote their lives to it. Many people think that science is far away from us. In fact, science is around you and me. When the holiday comes, I have more time to myself, so I began to be interested in scientific experiments. I did an egg "bone shrinking" experiment. I cooked the egg, peeled it, and then poured it into an empty glass bottle. I stare big eyes and observe carefully, and find that the egg is shrinking, shrinking and falling slowly. Finally, I suddenly fell into the bottle. Although the book says that the egg will definitely fall into the bottle, I am still dumbfounded at the sight, and a little pride arises! "The test was successful!" I can't help crying. Why can the egg shrink and fall into the bottle? With questions, I opened the book. It turned out that with the drop of water temperature, the space occupied by water in the bottle became smaller, so the space occupied by air in the bottle immediately became larger. In this way, the air around the bottle would squeeze the eggs and force them to slide into the bottle. Oh, it was not the "bone shrinking" that made the eggs fall into the bottle, but the contribution of atmospheric pressure! Then, I did the experiment of "water pressure bubble". I first poured some washing powder into a bowl, stirred it, poured water into another bowl, dipped one end of a toilet paper reel in a little washing powder water, and then put the other end in the water. At this time, a colorful bubble appeared. I did this experiment repeatedly and found it really interesting. I didn't have to blow it with my mouth, just dipped one end of the toilet paper reel in washing powder water, and the other one. Multicolored water bubbles will appear immediately. I excitedly invited my parents to enjoy it, and my parents were also amazed. I asked what kind of scientific truth this experiment contained, and I found the answer from the book: when we slowly immersed the scroll in clear water, atmospheric pressure pushed the bowl.