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Composition of the fourth grade in Science and Technology Museum
In the usual study, work and life, everyone has been exposed to composition. According to the characteristics of writing proposition, composition can be divided into propositional composition and non-propositional composition. There are many points for attention in composition. Are you sure you can write? The following is the composition of the fourth grade in the Science and Technology Museum that I collected for you. Welcome to read the collection.

The fourth grade composition of Science and Technology Museum 1 After a pleasant trip to Wuyi, the Spring Festival holiday has passed halfway. My parents took me to Shanghai. Along the way, the light rain was as lively as my mood, in the car. When I opened my eyes again, there were tall buildings on both sides of the road, and three tall houses went straight into the sky. Dad said, this is Lujiazui, Shanghai, which is the financial center. In an instant, we came to a huge spherical house, Shanghai Science and Technology Museum. Here I am! My parents and I went to the crowded ticket office, and everyone was lining up in an orderly way. I really want to film this scene and tell my friends to be civilized wherever they go, and then. I went in for a visit. First, we went to the animal area, where a big tiger was hunting, a big mantis was fighting a one-legged crab, and Okumo and the big snake frightened the tourists.

Butterflies are flying under colorful lights. This fake animal is really lifelike! I came to my favorite robot hall, where some robots can push carts, some can play chess and some can play the piano. I found the corner of the hall very lively. I took a closer look, and it turned out that someone was competing with the robot to shoot arrows. A brother on the side picked up a bow, inserted a sword and shot 90 points with a whoosh. It's robot's turn. He has a sword in his left hand and his right hand on the launcher. A sword drawn from its sheath hits the heart. Robots really wear a hundred paces! After watching the curtain movie, I went home reluctantly. When I get home, I want to invent more advanced robots.

On the afternoon of the first winter vacation, my mother took me to the Science and Technology Museum to see the exhibits of science and technology, which mainly reflected the knowledge, interest and participation of science and technology, and created a fashionable and modern "science paradise" for the public personality and teenagers.

The scientific and technological exhibits in it dazzled me. What interests me most is the mirror. As soon as I stood in front of the mirror, a person's image changed immediately, his head became bigger and longer, and his body became shorter and fatter. Do you understand why the mirror can shine people like that? It turns out that the mirror is a combination of concave mirror and convex mirror. Concave mirror will narrow the mirror edge, and convex mirror will enlarge the mirror edge, thus achieving the effect of distortion. Moreover, the imaging characteristics of mirror are the principle of plane mirror imaging. The reflection of light becomes a virtual image. Focusing inside the ball can make people shorter or fatter, and diffusing outside the ball can make people longer and bigger.

What puzzles me most is the stringed piano, which can play beautiful music without strings. It is operated by hand. As long as you cover the photosensitive sensor with your hand, the exhibits will make a sound, and the continuous action is like plucking a string, which can play different scales and music. In the past, some materials with high resistance became very small after illumination, thus increasing the conductivity. This phenomenon is called photoelectric effect. This material can be used to make photosensitive elements of light control circuits.

Through this visit to the exhibits and practical operation, I personally realized the "magic of technology"

On August 15, my mother took me to visit Hefei Science and Technology Museum. When we entered the gate of the Science and Technology Museum, we saw a large physical model on the first floor. As long as the roulette wheel is turned, the ball will follow the track, cross various obstacles and return to its original place. I saw along the running direction of the ball that the obstacles were spiral elevators, Archimedes vortex, jumpers and so on. It's a pity that I didn't see the sign about this physical model, and I still don't know its name. Passing through the first floor, we took the elevator to the second floor. According to my mother, this elevator is called induction elevator. As long as you put your hand on the handrail of the elevator, it will move If there is no one, the elevator will stop automatically. At first, I didn't believe it. I tried several times, and it was all true. Now the technology is really developed!

On the second floor, I found a hut that looked as ordinary as possible from the outside, and it said "Tilting hut". It's strange, how can the hut tilt? I can't help but be curious, and I can't help pulling my mother into it. As soon as I entered, I felt that the hut was really tilted and I could hardly stand. I tried to control myself and rushed out. How exciting!

Where's mom? "Judy, I can't!

"I heard my mother's words outside and couldn't help laughing. Later, we visited the third, fourth and fifth floors. Video phone, passive water and maglev train opened my eyes. Modern technology is really amazing. Finally, I watched the dome movie!

The science and technology museum is not only fun, but also informative. I will definitely go there again when I have the chance.

Today, Teacher Xing told us an exciting news: "Today, the popular science shinkansen-the mini science and technology museum of' Science and Technology into Campus' came to our school. In the third class in the afternoon, I'm going to visit the Science and Technology Museum, so I can experience it for myself! " The students said in unison, "Yes!"

I feel that time seems to pass very slowly today, and my classmates are as anxious as I am. We are looking forward to it! Looking forward to it! Finally, I waited until the third class in the afternoon. Finally, the teacher came, and the students suddenly became quiet like sparrows and sat like little pine trees. The teacher said, "Now let's go out and queue up to see the exhibition." The students gushed out like water that opened the floodgate.

When I came to the exhibition hall, I only saw a few paintings. I thought: Bai is very excited. Why are there only a few paintings? They are boring. The classmate next to me seemed to see my mind and quietly said to me, "It's very interesting." I went to the exhibition hall and saw the magical machine. I am too happy to speak.

I looked at this and that, but I didn't find anything that appealed to me. Suddenly I found an "interesting bubble" behind me. I read the instructions carefully, oh! It turns out that pulling the air brake will produce bubbles. I pulled up the airlock and let it fall back, and found a huge bubble inside. It's amazing. He and I have carefully studied the following scientific theories. Oh! With links, science is amazing!

Playing with caged birds again will give people an illusion. One side of a board is painted with a beautiful bird and the other side is painted with a cage, but when the cardboard is turned over, the bird looks like it is in a cage.

Happy time is always so short, we have to go back to the classroom again, I hope there will be more such activities in the future!

The fourth grade composition 5 of Science and Technology Museum was on holiday, and we came to Shanghai Science and Technology Museum with great joy. Go to see advanced, advanced technology and learn rich knowledge.

In the science and technology museum, there are robots built with wonderful computers. For example, a smart robot that can play gobang. When I had three pieces connected together, the robot was quickly shielded, and its intelligent mind made me finally fail. Another humble robot practiced a "good arrow" with one hand and all hit the target. Not to mention the robot "Robert", who is a famous host of the robot theater. His witty lines are very popular with the audience.

After talking about electronic technology, the following is interesting genetic technology. In order to create more animals and plants, scientists extracted reproductive genes from animals and plants and successfully cloned sheep and plants.

The animal world is children's favorite place. In the bat cave, we learned that bats catch insects by ultrasonic waves. Once the ultrasonic wave bounces back, it means that there are insects in front and bats fly over to eat. There are also beautiful butterfly specimens in the animal exhibition hall, including huge and heavy elephant turtles, lizards living in tropical areas and colorful birds. There are all kinds of animals here, which is really dazzling.

Shanghai Science and Technology Museum has brought us knowledge and happiness. I have gained a lot from this visit to the Science and Technology Museum. I look forward to coming again!

Today, we are going to visit the Shanghai Science and Technology Museum. Although the weather was gloomy and rainy in Mao Mao, we didn't ruin our mood because of the sudden change of the weather.

Early in the morning, I ran to school happily with a bag of snacks on my back. At about eight o'clock, we set off. Along the way, the students were talking and laughing, some were singing, some were in solve riddles on the lanterns, and some were playing games. They are all very excited! At nine o'clock, we arrived at the Shanghai Science and Technology Museum. As soon as we got off the bus, I saw a modern building standing, which was very spectacular. The building is concave with a big ball of transparent glass curtain wall in the middle. The whole architectural style is unique, and the asymmetric structure with low west and high east spiral is eye-catching. "This is the Shanghai Science and Technology Museum, so majestic!" Everyone can't help but admire. Entering the museum, we first entered the animal world. As soon as we entered, we saw huge elephants and fierce leopards. Look, a group of small Tibetan antelopes are eating grass with relish and stepping on the elevator. We entered the spider exhibition. This is, I think: spiders are terrible and disgusting. However, as soon as I came in, I saw a spider. Its eyes are round and its mouth is small, so cute. So my fear of spiders disappeared. Then, we went to explore the earth's crust and saw many unknown things, such as pearls and seismographs ... We also walked on the cable bridge and staggered on it, which was very thrilling! At 2 o'clock 10, we reluctantly left the Shanghai Science and Technology Museum!

On the sixth day of the first month, my brother and I went to the Science and Technology Museum to play. We first went to the second floor, listened to the wonderful songs played by the robot band, and then drove the game car to the side and went to the third floor.

It will be interesting when we get to the third floor. First, we walk in the maze. As long as we say open sesame's words, the door will open automatically, and then you can go wherever you want. After entering from the gate, there are three small doors. Only by answering the question correctly will the door open. I compete with my brother who comes out first, which depends on who answers the correct question first. We both secretly want to answer correctly as soon as possible. I have a question: Where is the capital of the Southern Song Dynasty? My answer is: in Hangzhou. By the way, I came out of this small door. My brother has an extremely difficult problem: please tell me 12, 15, 1. 9 which number is not a natural number? My brother didn't know, so he chose 12, and the result was wrong. I can't get out, so I have to wait for the next question. I won this time.

Because this maze game is so fun, my brother and I have been playing for a long time and don't want to come out. Finally, I reluctantly went to another place, where I could participate in running, shooting, standing long jump and other sports competitions!

There is another place where you can play with water guns, and you can play in the water.

This science and technology museum was so fun, and then we went to the surface of the moon and the base of the moon and had a good time.

Recalling the visit to the Science and Technology Museum that day, I clenched my fist again and made up my mind: As a flower of the motherland, I must study hard and make contributions to the motherland. I want to protect the environment from childhood, create a green motherland and create a green earth. ...

Bright sunshine and joy accompanied me to the Beijing Science and Technology Museum. Standing at the gate of the Science and Technology Museum, looking around, there are tall and solemn buildings above, and there are slowly flowing people below, which constitute a natural color map. Walking into the gate of the Science and Technology Museum, the first thing I saw was white balls hanging in the air with different shapes and patterns. Some innocent and lovely girls jumped up and reached for it, but in various exhibition halls, I also saw funny projects such as self-propelled fans, disks, gymnastics robots, holographic acoustics, flute playing, virtual volleyball, virtual book flipping and so on.

Through the corridor, into the world of robots. There are all kinds of robots: robots that can play the piano, robots that can talk, robot dinosaurs that can walk ... how interesting!

The most interesting thing is the sloping building. As soon as I entered, I was dizzy and lost my center of gravity. Some children fell down as soon as they entered. Further on, there is a black house. As soon as I entered, my face turned black, and there was a special lamp on the right wall. You must pat it with your hand to light it up. It was fun!

At this time, it is time to gather. This visit not only made me have a pleasant day, but also broadened my horizons, increased my knowledge and understood all kinds of scientific mysteries around us. We should all love science, study science and apply science. I understand that there are still many scientific knowledge waiting for me to learn and many scientific treasures waiting for me to explore, so I will concentrate on reading, read more and ask more questions, and lay a solid foundation for the future.

After the summer vacation, my mother took me to Shanghai for a trip. Our first stop today-Shanghai Science and Technology Museum.

Shanghai Science and Technology Museum, located in Century Square on the east bank of Huangpu River, is a theme science and technology park integrating nature, technology and art.

When we entered from Gate 6, the first thing we saw was a large bronze ware-the armillary sphere. It is the crystallization of the high development of ancient science and art in China. It is used to locate and measure stars, the sun, the moon, planets and other celestial bodies.

After entering the museum, I went to the animal world, spider exhibition, robot world, information age, four-dimensional cinema, designer cradle, light of wisdom, rainbow children's playground and light of exploration according to the recommended route.

What impressed me most in these venues is the robot world. People can compete with robots to shoot and play chess ... What interests me most is the robot twisting the Rubik's cube. Because a child in front upset the Rubik's Cube relatively simply, it only took the robot 18 seconds to restore the six faces to the same color. So I made it more difficult to disturb the Rubik's cube, when the robot said, "This is very difficult." It took 52 seconds to recover. How powerful robots are! It takes less than a minute to complete such a complicated operation.

It's going to close before I know it, but I don't think I've seen enough. I wish time could be slower. Urged by my mother, I reluctantly left the Science and Technology Museum.

Zhongwei is not only a scenic resort, but also not backward in technology in other cities. Today, the school organized all of us to visit the Science and Technology Museum. We are all very excited and can't wait to fly directly to the Science and Technology Museum.

After two kilometers of "Long March", we finally arrived at the Science and Technology Museum. When we entered the Science and Technology Museum, we were greeted by huge posters. Just as we were thinking about what this was, the teacher came over and handed out 3D glasses and said, "Students, put on your glasses and look at the poster." We put on our glasses and looked in the direction of the poster. We were shocked at once, because the animals on the poster stood in front of us alive. When we took off our glasses, the animals changed back to their original appearance. We suddenly realized that it was the effect of 3D glasses.

We all watched a lot of scientific and technological equipment together, but what impressed us most was a scientific and technological equipment called hyperbolic slit. The shape of this equipment is very simple, that is, two straight steel poles with a curved slit in the middle. But why do straight steel bars pass through curved slits? Through my careful observation, I finally found the mystery inside. It turns out that the straight rod forms a certain angle with the central axis and can rotate around the central axis. Its trajectory is a hyperboloid figure, and there is a hyperbolic groove on the plexiglass plate fixedly connected with the central axis. Therefore, when the rotating straight rod rotates around the central axis, you will see the magical phenomenon that the straight corridor passes through the curved hyperbolic groove.

After reading these, I am deeply touched. These scientific and technological equipment and magical phenomena are the crystallization of scientists' usual efforts. If I want to discover those magical phenomena like these scientists, I must study hard, because I know that "wisdom is the key to open the door to science."

Composition for the Fourth Grade of Science and Technology Museum 1 1 Today is scorching sun. My parents took me to the Shanghai Science and Technology Museum. I'm so happy!

We took subway line 4, then changed to subway line 2, and arrived at Shanghai Science and Technology Museum. When I arrived at the Science and Technology Museum, I first visited the Biological Vientiane Exhibition Area and displayed various simulated animals. The most interesting thing is that I looked into an eye-sized hole and saw insects crawling on the ground and bats flying in the sky, just like in a movie. Then, we watched the spider exhibition, which showed all kinds of spiders, including some living spiders. I watched me move forward. Suddenly, a black thing on the ceiling almost fell on my head, making a squeaking sound, and then went back, which scared me. It turned out to be a specimen of Okumo, as big as an umbrella, with some hairs on its long claws. This is the first time I have seen it so big.

Then we visited the robot world. I saw a robot playing Tai Ji Chuan, a robot playing the piano and a robot shooting arrows. Mother told I, Robot that it has been used in many fields. Then I visited the exhibition hall of aerospace, health and the light of exploration.

This visit to Shanghai Science and Technology Museum opened my eyes. I was shocked by the wisdom of scientists. I must study hard and become a scientist when I grow up and make contributions to mankind.

I got up early today, because today is not another day, but the day to go to the Science and Technology Museum! I am excited and excited to get dressed, wash my face and brush my teeth, and then wait for my parents

On the way to the Science and Technology Museum of West Lake Cultural Square, we seem to have endless topics, such as the last ski resort; Why only 30 yuan is the ticket for the Science and Technology Museum? ..... On the topic, I unconsciously came to the tunnel at the bottom of Qiantang River. When I heard that I was going to be in Qiantang River, I was very excited, but as soon as I entered the tunnel, I lost interest because there was no water in the tunnel. Soon after I left the tunnel, we saw the Science and Technology Museum.

We bought tickets at the door and entered this magical world. My first experience was trying to experience weightlessness in space. I experienced weightlessness with a sophomore. I was very excited at first, but then I was not excited, because I climbed slowly like a turtle in my seat. When I got to the top, I thought I would slowly descend. As a result, I suddenly fell when I was distracted, which scared me half to death. Outside, my parents asked me if I wanted to play again. I immediately ran to the second brain to control the future. There were so many people that I began to queue up and waited for a long time before it was my turn. The staff asked me to bring an instrument and then let me concentrate. As soon as I concentrated, the car in front began to run. As soon as I was distracted, the car stopped, which was very interesting. Later, I went to the Ion Theatre and went for a walk on the seabed ... We went home tired. Next time, I want to come to the Science and Technology Museum again.

I love the science museum here, and I love science even more.

Today, we came to Shanghai Science and Technology Museum, where I experienced the development of science and technology.

First of all, we came to the "animal world", which contains characteristic animal specimens from all continents. I visited various animals in Africa, Asia and America in turn. In Asia, I saw pandas, monkeys and other animals, especially a bear with brown fur. It has a circle of black hair beside its eyes and a long tail behind its body. Its name is raccoon, which is what we often call little panda. In China, it is mainly distributed in Yunnan and Sichuan. Later, I came to touch the computer and took a closer look. I found that many animals in the world were on the verge of extinction. I can't help thinking: we really need to protect animals!

Then we came to "Biological Vientiane", which is endless green in the tropical rain forest. It is said that the tropical rain forest on the earth only accounts for 7% of the earth's land area, but more than 70% of the biological species on the earth are distributed. It can continuously produce the oxygen we need for survival. I can't help shouting that "protecting the rainforest means protecting ourselves".

Unconsciously, we have come to the "robot world". As soon as I entered the door, I saw a row of robots building a car. Look inside, some robots can play chess, some robots can shoot arrows and some robots can draw pictures. The most amazing thing is that I played an interactive game with the robot. I performed recycling garbage by machine, and won 10. I didn't expect modern technology to be so developed.

Finally, I visited the information age, virtual laboratory, the mystery of the earth's crust, the light of wisdom and so on.

The blink of an eye will soon pass. When I was about to bid farewell to Shanghai Science and Technology Museum, I inadvertently looked back at the blue sphere and said to myself, "This trip not only increased my scientific knowledge, but also made me understand the importance of protecting nature."

Science and Technology Museum Grade Four Composition 14 With the progress of science and technology all over the world, our science and technology in China is becoming more and more advanced. In order to make the flowers of our motherland better contact with science and technology and like science and technology since childhood, the state has held mobile science and technology museums all over the country.

Look! Our school also organized 300 people to visit the Mobile Science and Technology Museum in Zhangba. The school gave these 300 places to all the students in Class 5, Grade 6 (1). The news made us proud for several days!

Looking forward to the stars and the moon, and finally looking forward to Thursday. We stood on the playground, ready to start. Half an hour later, we set off. On the bus, we sang together and had a good time. This visit to the Mobile Science and Technology Museum also promoted the friendship between our classmates.

After another half an hour, we finally arrived at our destination-Zhangba Diecui Building Exhibition Hall.

We went in in several groups. As soon as our group went in, we all took out our mobile phones to take pictures and wanted to leave a souvenir. The Science Museum is divided into several themes, and I like mathematical charm and ball screen cinema best. The charm of mathematics lies in explaining mathematics to us through some tools and objects. The ball screen cinema is our favorite. The Dome Theater looks round. Of course, it looks a bit like a ufo. Each movie lasts ten minutes, and only thirty people are allowed in at a time. Therefore, we also have a headache about queuing! This film is about the extinction of dinosaurs. When a volcano erupts, you will feel immersed in magma. The feeling of being there is wonderful, and it makes people feel like watching a 5d movie.

Happy times are always short. After only an hour and a half, the teacher told us to go back to school, and no one wanted to go. However, all the parties had to end, so we went back to school obediently. I learned a lot during my visit to the Mobile Science and Technology Museum. I think it is really worth it!

Today, my mother took me to the long-awaited Science and Technology Museum.

When I went to the second exhibition hall, I saw a nail bed. I think, does it really hurt to sleep on a nail bed? So I went to the nail bed. I lay on the nail bed and my nails began to rise and fall. Wow! It really doesn't hurt, but my back is a little bit. I asked my mother, "What's the secret?" Mom said: "When the pressure is constant, the larger the stress area, the smaller the pressure. There are more than 8300 nails on the nail bed. People lie on the nail bed in contact with most nails, and each nail bears a relatively small human weight, so people don't feel pain. " I suddenly realized!

I am also interested in "self-help"! There were three chairs beside me, and I sat down separately. The first chair is difficult for me to pull, the second one is easier to pull than the first one, and the third one is effortless. I asked my mother again, what is this mystery? Mother said: "The crown block can change the force, and the pulley saves effort, and the pulley saves effort and changes the direction of the force." . When the movable pulley is used, the total weight of the weight is borne by several ropes that can pass through the movable pulley. When lifting the weight, several ropes are used, and the force used is a fraction of the total weight, so sitting in a chair, you can pull yourself up effortlessly. I am surprised!

The power of science and technology is really powerful!