Because of innovation, our life is so happy; Because of innovation, our life is so colorful; Our life is so happy because of innovation. The following is an innovative fourth-grade composition I brought to you, hoping to help you.
I have done many experiments, including water refraction experiment, balance weighing experiment, tumbler experiment and so on. My favorite experiment is about thermal expansion and cold contraction.
Why should I do this experiment? Let's start with that one thing. Once, my classmate asked me to help twist the bottle cap of mineral water, but I couldn't unscrew it for a long time, so we asked Mr. Wang for help. Teacher Wang finally unscrewed it. After a while, the students in the class seemed to be influenced by Yin Ming, including me, and they all asked other students to unscrew the bottle cap. I thought: Why can't they unscrew the bottle cap? Just as I was thinking hard and fidgeting, I suddenly noticed a detail: the water in their plastic water bottles and me was filled with hot water, and then it gradually became cold. With this in mind, I'm going home to do a little experiment.
I came home, took out a mineral water bottle, prepared some hot water, and then began to do experiments. First pour hot water into the bottle, then tighten the lid and put it in the refrigerator. I felt a little worried while waiting for the result. After a while, I estimated that the water temperature also dropped. I took the experimental bottle out of the refrigerator and twisted it, but it wouldn't open. At this time, my father came up to me and said, "This is a phenomenon of thermal expansion and cold contraction: after the bottle is sealed, with the decrease of temperature, the volume of water and air in the bottle will gradually decrease, and the air pressure inside the bottle will become smaller, while the air pressure outside the bottle will remain unchanged, resulting in the pressure difference between the outside air and the bottle cap; You see, the bottles are all crushed; In order to make the bottle cap easy to open, you need to let the water cool before you cover it. " Hearing this, I was suddenly enlightened. I see.
This experiment made me understand the truth that heat expands and cold contracts, and also helped me explain a phenomenon that everyone encountered and solved the doubts in everyone's hearts. This is my favorite experiment.
Innovating the composition of the fourth grade of primary school once G20 not only made the world know Hangzhou, but also made more people know Hangzhou again. Hangzhou is no longer just a "0/hour drive from Shanghai/KLOC-"city. This is not the National Day holiday. Because of the live broadcast of G20, my grandfather's family in Fujian came to Hangzhou for a deep tour.
I am proud to be a little tour guide. Walking into the subway station, a mother and a mother have already bought tickets with their mobile phones. After a light sweep on the ticket vending machine, the subway ticket will come out. No change, no queuing, especially convenient. In Qianyijiang New Town, the tourists waiting to see the music fountain are already crowded. With the music playing, the music fountain changes into various shapes, which is amazing. The familiar big golden ball and fantastic fountain, but the scene changed from TV to immersive, which made the little grandfather's family beautiful.
The next day, we also took our little grandpa and his family to the West Lake and the Silk Market. We use Didi taxi and mobile phone Alipay to eat, and even in convenience stores, we use mobile phone scan code to pay for drinks. The advanced mobile payment function is available everywhere, which makes the little grandfather's family envious. Grandpa sighed with emotion: "Hangzhou is not only beautiful, but also has so many advanced mobile phones to pay." It seems that as long as there is a mobile phone in Hangzhou's daily life, it can be unimpeded! " One mother and one mother then introduced to the guests that there will be more distinctive innovations in Hangzhou in the future. For example, Yun Qi Town in West Lake, a healthy town in Tonglu and so on.
Science and technology change life, and innovation can achieve the future. It is the innovation and efforts of so many people that make Hangzhou a city full of charm and characteristics.
When grandpa's family left, we met and met again five years later.
I believe that Hang Cheng in the future will attract more people to travel because of innovation. And I, too, should study hard and strive to be a member of this innovative army!
I have many innovative and versatile stories. I like calligraphy, dancing and art. Do you like it? Please listen to my following narrative!
Actively participated in dance training classes inside and outside the school and won many awards. This award is hard-won! On Children's Day this year, our school rehearsed the dance "Spring in the Field". Our dance classmates have to train hard every day and rehearse an action specially, which makes us feel very bored. Every movement has to be repeated for a long time, and our dance is very pleasing to the eye. Every time you dance, you have to sing and dance, and you have to count the beats in your heart. This kind of training is really hard. After hard practice, we finally ushered in a beautiful day, that is, to perform on behalf of the school. We feel very honored. We were very nervous during the performance, afraid of jumping wrong, but in the end we actually won the first prize, which was really amazing.
In off-campus dance training, every week at 2 pm, I have to learn Latin dance. We studied cha-cha, rumba and samba. This is what we have to practice hard every Saturday.
My second favorite is calligraphy. I go to Mr. Wang to write calligraphy for an hour every night. I began to practice calligraphy in the summer vacation of the second day of junior high school, and later rewritten calligraphy. I practice calligraphy beautifully. When I write, everyone praises me. Miss Wang has many brothers and sisters who write well. I always look at their handwriting when I go to practice. I really envy them! So I made up my mind to surpass them. For two years, I have surpassed them. If I surpass them, I will definitely continue to work hard. What did you say?/Sorry?
Versatile me! This is innovation.
Some people say that the formula of success is: "talent+diligence+opportunity = success." But I don't think so. According to this formula, we can get the following three formulas: success-diligence-opportunity = talent, success-talent-opportunity = diligence, success-diligence-talent = opportunity, but do these formulas exist? Obviously, she doesn't exist. Therefore, I think the formula of success should be: creation = success.
People always say that prodigies are "gods", but in fact this kind of god is creativity. What is creation? Creation means imagining new methods, establishing new theories and making new achievements or things. So what is success? According to the dictionary, success means: getting the expected result is the opposite of failure. People generally imagine that success is superficial success, that is, material needs are fully met, and the other is spiritual success. As the saying goes, people are not poor. Only spiritual success is true success, and the necessary condition for success is the ability to create and innovate.
How many people can be creative and innovative, and how many people can really be successful? What we need most now is the ability to innovate, which can show ourselves, change ourselves and push ourselves.
Then, some people may think, how can we have the ability to innovate and create? Actually, it's not difficult. Innovation can only come from yourself. You just need to sublimate an extremely ordinary thing, turn ordinary things into extraordinary things, abandon old ideas and establish new theories. This is the real success.
As the master of the earth, human beings should learn to innovate and create at present. Only in this way can the world become beautiful.
I have an innovative good friend whose net name is Yunran.
Her hobbies are the same as mine, like playing Fantasy Westward Journey and watching Wulin Legend, but there is one difference, that is, gender. I am a man and she is a woman.
Although she is a woman and older than me, I also hope to be her good friend. Girls may think that men don't have a good thing. Boys may think, how can girls and boys become good friends? Men and women don't give and receive. But I don't think so. We haven't met. How can we talk about whether men and women have paid? Besides, I also have suggestions for girls. Why don't men have a good thing? Are there more men or women as scientists, more men or women as coaches, and more men or women who can stand up in difficult times? If girls are not convinced, I can only say so. Do you want to know? That is, "if you want to fight, fight one-on-one". Let's see what new tricks you have. Well, I'm getting further and further away from the subject, so let's get to the point quickly. By the way, I have a request for your help. Find out which school and class the fuel belongs to. (Ha ha, just kidding, please calm down)
Well, I hope you don't take it to heart and don't come to Europe for me. I can only get the top seven at most. You think I don't study well, I'm thin and wear glasses, so you think I'm easy to bully. I'm telling you, it's not good to be angry with me. Now, I am here to wish my sister good health and learn by going up a storey still higher.
Pay tribute to Sister Yun Burning.
Innovation is the wing of life; Innovation is the cornerstone of the country's rise; Innovation is the capital of national pride; The secret weapon to innovate personal new achievements.
A country's prosperity is inseparable from innovation. During the Warring States period, Zhao was located in the north, and ethnic minorities frequently invaded the border. Even if Zhao Jun fought back, he was defeated repeatedly. Faced with such a dilemma, King Wuling of Zhao did not complain, nor did he complain, but calmly analyzed the real reason for the defeat. Later, he found that the soldiers of Zhao were wearing long-sleeved robes and fighting by car, which made it inconvenient to move. So he pushed his way through the crowd and made drastic reforms in military equipment and clothing. He took the lead in putting on Hu clothes, learning to ride and shoot, and changing the car war into a riding war. Since then, Zhao's fighting capacity has increased day by day. When the enemy invaded again, Zhao won a great victory and the enemy never dared to invade again. Zhao changed from a weak country that was bullied by others to one of the Seven Heroes of the Warring States Period.
Zhao was able to change from weak to strong because Zhao Wuling dared to innovate, and innovation was suitable for a set of equipment at that time; This is why King Wuling of Zhao knows that innovation is the cornerstone of a country's prosperity. If King Wuling of Zhao didn't immediately discover the reasons for his defeat and reform, how could Zhao develop from a weak country that was bullied into a powerful country with fighting capacity? If there was no innovation, perhaps Zhao would have embarked on the road of national subjugation.
It can be seen that innovation is closely linked to the lifeline of a country's rise and fall. If a country wants to prosper, it must innovate in time. Innovation is more important for the development of today's era, especially living in this era of lifelong learning and innovation.
For countries and individuals, without innovation, they can't keep up with the times. If a country does not innovate, it will fall behind, and if it falls behind, it will be beaten. If a person does not innovate, he will not be able to stand in a highly competitive society and will be eliminated by society. Innovation! For their own grand future, and for the prosperity of the motherland.
Mechanics is an easy-to-understand but error-prone science. However, I have always had a soft spot for Newton's discovery of gravity. I changed my mind and thought a lot about gravity. Physicist Newton once thought at home and on campus. Suddenly, a ripe apple fell on his head. He was looking up at the sky when his eyes suddenly opened. After a series of experiments, he put forward the law of universal gravitation. Gravity is one of the inherent essence of power, and every object on the earth will attract each other and produce gravity.
But if the distance between objects is too close, it will produce a certain repulsive force. All objects near the sphere are attracted to the center of gravity without exception, because any object on the surface of the earth is insignificant compared with the mass of the earth itself. In that case, all the objects on the earth will stick to the ground because of gravity. If, one day, the gravity on the earth disappears, what will happen to human beings? From earth to outer space? Or perish from now on? Or floating on the earth, but unable to leave? With these questions, I looked up information online with curiosity. I understand that gravity exists on the earth because of the magnetic field generated by the complex core inside the earth. If the magnetic field disappears, water and atmosphere will leave the earth, and humans will leave with space. But in this process, it will be impacted by pressure and lead to death. I wonder, will different objects react to gravity the same? I took two items with different weights, a pen and double-sided tape, and threw them out at the same time with the same strength.
Finally, they fell to the ground, which shocked me greatly. Why on earth did these two objects land at the same time? It turns out that although the two objects are different in mass, they are all connected by gravity, because the force and reaction force are definitely the same. Well, after listening to my introduction, everyone must have a deeper understanding of gravity. This mechanism is so elusive. In fact, there are many mysteries in nature waiting for us to discover. Let's explore the mysteries of nature together.