Materials and tools: two sprite bottles, glue, meat cleaver, scissors and a nail.
Method of making: 1 Take off the green bottom cover of a Sprite bottle, cut it into a lotus shape, turn it over and stick it on the bottle to form a base. Cut a 2 cm wide green ring from the green bottom cover and put it on the bottle. Remove the bottleneck, and cut a wide band of 13cm long and 8cm wide and several narrow bands of 3cm wide on the bottle. 4. Carve a pattern on the 3 cm narrow strip with a meat cleaver, then turn these narrow strips out and insert the green ring from bottom to top. 5 Take another beverage bottle and use the bottle body to cut out 6 leaves with scissors, with the length of 17 cm. Nail the flower basket on the wall, insert leaves and flowers, and the wall-hung flower basket is ready.
Composition: Take off the green bottom cover of Sprite bottle, cut it into lotus shape, turn it over and stick it on the bottle to form the base. Cut a 2 cm wide green ring from the green bottom cover and put it on the bottle. Remove the bottleneck, and cut a 13 cm long, 8 cm wide broadband and several 3 cm wide narrow bands on the bottle body. Carve a pattern on a 3 cm narrow strip with a meat cleaver, then turn these narrow strips out and insert the green ring from bottom to top. Take another beverage bottle, use the bottle body and cut out six leaves with scissors, the length is 17 cm. Nail the flower basket on the wall, insert leaves and flowers, and the wall-hung flower basket is ready.
2. How to write a scientific composition How to write a scientific composition?
problem solving
In scientific and technological activities, observation records should be made when observing experimental objects; When conducting experiments, you should write an experimental report; In order to introduce a technology product to others, you should write a product description, etc. These recorded words, which are based on science and technology and made in scientific and technological activities, are called scientific and technological compositions.
Scientific writing is an important content of practical writing at present.
Rio
Why practice scientific composition?
This is first related to the status of science and technology. Science and technology is the primary productive force, an important driving force for social progress and historical development, and an important factor for the country's prosperity and people's happiness. At present, in order to build socialism with China characteristics as soon as possible, the state is carrying out extensive scientific and technological activities in schools. Primary schools organized extracurricular groups for science and technology, and carried out "five small activities" with "small observation, small report, small experiment, small invention and small production" as the core, which cultivated scientific and technological interests and hobbies and exercised the ability of observation, thinking and hands-on. Therefore, learning to write scientific and technological composition is not only the need of modernization, but also the requirement of scientific and technological activities in schools, which is consistent with the Chinese teaching task of initially cultivating primary school students' ability to write practical articles. In addition, it can also help solve the problem that there is nothing to write in composition, and it is also a channel for composition teaching reform! For primary school students, actively participating in the writing of scientific and technological composition can not only have the above advantages, but also systematize and organize the knowledge learned from extracurricular scientific and technological activities and consolidate the achievements of extracurricular scientific and technological activities, which is a multi-faceted thing.
The types of scientific and technological compositions include observation records, experimental reports, investigation reports, production instructions, and popular science essays introducing scientific and technological knowledge.
There are many similar requirements for the writing of these articles.
The first is loyalty and reliability.
Science and technology are honest things, so we need to accurately reveal the objective laws of things and test them one by one in actual combat. Scientific and technological composition is a true reflection of scientific and technological activities, and it also requires authenticity and reliability. It is not allowed to fabricate, even the smallest details must be accurate. If a chemical is introduced as non-toxic, then it is necessary to repeatedly experiment and analyze various internal components to prove that it is non-toxic, and then the word "non-toxic" can be written in the manual, which should be absolutely true.
Secondly, scientific and technological composition must be concise.
The content of scientific and technological composition must be clear, but not too long. In short, simple and clear. Sometimes in order to achieve the purpose of brevity, it is necessary to use charts to explain it at a glance. What is related to brevity is the choice of words. Any composition introduced to the general reader should use as few technical terms as possible, because only professional and technical personnel can understand technical terms. Most people don't understand it and use it too much. People who write it feel very clear, while most readers feel unclear and difficult to read. When it is necessary to use technical terms, some remote terms should be annotated.
Third, scientific and technological compositions, such as experimental reports, have their own formats, which should be mastered before writing, so that the experimental reports and other articles written will conform to the norms. The general format is divided into several items: title, preface, text and ending. The name of the experimental report in the topic should generally be clearly written, such as the Experimental Report of Climbing the Wall with a Climbing Tiger. The purpose, time, object and method of the experiment should be clearly written in the preface. The text is the core part of the report, and the process of the experiment and the data obtained in the experiment should be clearly written. Finally, we should analyze the experiment, write a summary comment, or make suggestions for future experiments.
Fourth, the language of scientific and technological composition should be accurate and concise. Don't pile up adjectives, and use words repeatedly to make sentences accurately and unambiguously.
Science and technology and life
Science and technology are everywhere, which makes us feel extremely proud. Our food, clothing, housing and transportation are inseparable from the contribution of science and technology.
Inventions and creations in the 20th century have brought endless changes to mankind. Zipper: seamless; Washing machine: liberating the labor force; Vitamins: make the tree of life evergreen; Rice cooker: uncooked rice is cooked into cooked rice; Air conditioning: There are four seasons like spring here; Cixian floating train: a train that can "fly"; Neon lamp: sleepless pearl ...
Ah! Now the technology is really developed! Even our school has endless science and technology.
In a science class, Miss Wang gave us a lesson about "electricity and magnetism". Teacher Wang told us: "The electricity in life comes from 1820. In an experiment, Danish scientist Oster accidentally put the electrified wire close to the compass and found that electric energy produces magnetism. Because of this discovery, it opened the door for human beings to use electric energy on a large scale. " In the following time, we did another experiment. We first prepare a compass, a battery and a wire, then straighten the wire, remove the plastic at both ends of the wire to expose the copper core, and then connect the copper core at both ends of the wire to the positive and negative poles of the battery. Then we put the wire near the small compass. At this time, we observed that when the wire just approached the compass, the compass suddenly turned. After disconnecting the current, the compass is as quiet as a child who has just been taught. The teacher told us that this is evidence that electricity produces magnetism. At that time, we witnessed the mystery and interest of technology together.
Science and technology support civilization and create the future. The future is in our hands. Let's become knowledge explorers, roam on unknown roads, and make the world we live in a better place with unlimited creativity!
3. How to write a scientific composition?
Notes on the title or background of a book.
In scientific and technological activities, observation records should be made when observing experimental objects; When conducting experiments, you should write an experimental report; In order to introduce others
When introducing a certain technology product, you should write a product description and so on, which is a record text with technology content, and it is made in scientific and technological activities.
It's all called scientific composition.
Scientific writing is an important content of practical writing at present.
reason
Why practice scientific composition?
This is first related to the status of science and technology. Science and technology is the primary productive force, an important driving force to promote social progress and historical development, and also a country.
A strong family is an important factor for people's happiness. At present, in order to build socialism with China characteristics as soon as possible, the state is offering it widely in schools.
Exhibition of scientific and technological activities.
In primary school,
Organized a science and technology extracurricular group.
"
Small observation,
Small report, small experiment,
Small inventions and small productions
"
concentrate
"
Wu Xiao
"
Activities cultivate scientific and technological interests and hobbies, and exercise their ability of observation, thinking and hands-on. Therefore, we should learn to write scientific and technological works.
Literature is not only the need of modernization, but also the requirement of scientific and technological activities in schools, which is the same as the language that initially cultivates the ability of primary school students to write practical writing.
The teaching task is the same. In addition, it can also help solve the problem that there is nothing to write in composition, and it is also a channel for composition teaching reform!
For primary school students, actively participating in the writing of scientific and technological compositions can not only have the above advantages, but also help them learn the knowledge system from extracurricular scientific and technological activities.
Consolidating the achievements of extracurricular scientific and technological activities is a multi-purpose thing.
The types of scientific and technological compositions include observation records, experimental reports, investigation reports, production instructions, and popular science essays introducing scientific and technological knowledge.
Wait a minute.
There are many similar requirements for the writing of these articles.
The first is loyalty and reliability.
Science and technology are honest things, so we need to accurately reveal the objective laws of things and test them one by one in actual combat. Scientific and technological work
Literature is a true reflection of scientific and technological activities, and it is also required to be true and reliable, and it is not allowed to fabricate even tiny details.
Be accurate. If a chemical substance is introduced as non-toxic, it will be proved to be non-toxic after repeated experiments and analysis of various internal components.
Write it in the manual.
"
nontoxic
"
Two words should be absolutely true.
Secondly, scientific and technological composition must be concise.
The content of scientific and technological composition must be clear, but not too long. In short, simple and clear. Sometimes in order to achieve the purpose of simplicity, it is necessary to use graphics to explain.
Let people know at a glance. What is related to brevity is the choice of words. Any work introduced to ordinary readers should use as few technical terms as possible because it is specialized.
Trade terms are only understood by professional and technical personnel. Most people don't understand it and use it too much. People who write it feel very clear, but most readers don't.
Not easy to read. When it is necessary to use technical terms, some remote terms should be annotated.
Third, scientific and technological compositions, such as experimental reports, have their own formats, which should be mastered before writing, so that articles such as written experimental reports can be used.
Meet the specifications. The general format is divided into several items: title, preface, text and ending. The name of the experimental report in the topic should generally be clearly written, such as "climbing"
Experimental report on gecko climbing wall. The purpose, time, object and method of the experiment should be clearly written in the preface. This topic is the core of the report.
The process of the experiment and the data obtained from the experiment should be clearly written. Finally, analyze the experiment, write a summary comment, or propose future experiments.
Views, etc.
Fourth, the language of scientific and technological composition should be accurate and concise. Don't pile up adjectives, and use words repeatedly to make sentences accurately and unambiguously.
As we all know, students are the hope of the motherland, and the future is in their hands. A student's performance in school is really related to the future of the country, the security of the world and the prosperity of the universe.
This is also the reason why I want to write such an article now, hoping to benefit comrades who are still muddling along at school like me. I want to say here that if you are recognized as a gentleman, you should set an example in school and let those boys who don't understand the world learn from you.
First of all, you should keep in mind the famous saying that "school is my home, and health depends on everyone", and always keep it in mind. Because the best thing a student can show in school is health.
Be careful, don't litter. You should put it under your seat. If you sit by the classroom window, don't hesitate to throw it out. But before you put it into action, you'd better see if the bald head of the principal appears in your target range, remember. In addition, spitting is also detrimental to the image. Of course, if you really want to throw up, you can consider throwing up on others without affecting the school environment.
Also, the school is absolutely not allowed to urinate anywhere! If misfortune really befalls you, you should dare to admit your mistake. Although the result of the matter is obvious to all, it has a bad nose, but it must not be vague. You should tell the truth, tell the teacher the reason and process in detail, and analyze the historical conditions and their contingency and inevitability. And promise that the same thing won't happen again in the future, but if you want to leave a way out for yourself, you must say something vague in advance, such as "if there is similarity, you will not be responsible."
At school, you must finish your homework by yourself. It's really mean to let others help you with your homework. This is absolutely not allowed in a decent person. If someone else's homework is finished first, you should politely borrow someone else's homework, but you can't copy others' homework, because it is their spiritual wealth. The correct way is to write your own while reading others'.
If you are really too lazy to do your homework, and you are an honest man, and you won't tell some lies to the teacher without doing your homework, then you'd better stay at home honestly on the day of checking your homework. This is really effective, and there are ways to do nothing.
Listening carefully in class, talking loudly in class and doing small gestures are all behaviors that look down on teachers, so this is undoubtedly the best way to embarrass teachers. If you are really a decent person and don't want to do things so well, then you'd better bring some extra-curricular books or gameboy to class, because teachers are not easy to find and won't bother you easily. Besides, for most students, sleeping is really the best way to avoid the teacher's terrible nagging. Its advantage is that it can stimulate appetite and keep healthy.
After class, if you accidentally knock over someone else's desk while doing aerobic exercise, and his books and exercise books fall all over the floor, and he happens to be out of the scene, then you'd better pretend that you have nothing to do with it, and never admit that you did it yourself, so as not to fight and make this classmate even more unlucky.
After-school activities are colorful, and the most important thing is of course paying taxes. God gave us the right to eat, so we should have the obligation to pull. If you want to go to the toilet, you must not go to the wrong place, because unisex toilets are not common now. It is indecent to take off your pants before entering the toilet, which will also cause great adverse effects and is suspected of exhibitionism. But if you want to attract the attention of the opposite sex or the police, this is a good way.
Just a few minutes after class, there is not enough time to go to the cafeteria for a meal. So it is inevitable that you will be late. At this time, you should be polite and shout at the door of the classroom (because some teachers are older and often can't hear them). ) report. If the teacher doesn't respond and you know that he did hear you, it means that he didn't let you into the classroom on purpose. Since you are a student and he is a teacher, you should respect his advice and leave school to find something to do. At this time, you must never tell the teacher which game room or skating rink you want to go to, because it is impolite to interrupt the teacher when he is trying to teach.
It is disdainful for people of status to leave without paying after eating in the canteen. People like us can only pay a few dollars less for taking advantage of others. If you accidentally put your hand into someone else's pocket, you should take it out at once. If you find yourself holding someone else's purse in your outstretched hand, you should throw it away immediately, because we know it is the root of all evil, and you should throw it away mercilessly. People who are a little more rational-such people deserve respect-will wait until all the money in their wallets is taken out before throwing it into the enemy's bags or drawers.
As my political teacher said, the exam is extremely serious. Everyone with extraordinary knowledge will be as serious and rigorous in the examination room as on the battlefield. Cheating and cheating will undoubtedly lead to death. This time, the invigilator and our classmates started an infighting. Only when you fight your way out, will dawn break the dark silence, and you will regain the light of the sun from the invigilator.
5. Science and technology into the campus composition 100 words 10 June 19 In the second class in the afternoon, the school held the activity of "Science and technology into the campus".
The teachers and students of the whole school happily came to the designated position with small rubber benches. The activity officially started. First, Teacher Zhou from Children's Palace talked about scientific and technological knowledge, car model making and so on. The students listened with relish and were completely immersed in it.
The most wonderful program arrived, only to see several teachers from the Children's Palace dispatched one after another, each with a remote control, controlling the performances of various car models. Cars are fast and slow, some jump over a small bridge made of wooden boards, some run over the bridge out of control, and some collide with other cars without turning the corner. What a wonderful scene, I was dazzled. Then it was the turn of flying saucers and helicopters. The students cheered and saw them flying high like birds, flying low for a while, and flying into the sky with a whoosh.
The whole school couldn't help standing up and applauding, even the residents living nearby applauded. Technology has brought us knowledge and happiness.
Today opened my eyes. I want to study science and culture well and serve my country in the future.
6. Small-scale production of science and technology, how to write a composition about the faucet, now everyone has installed it, and everyone must think that the more common the better.
However, what I want to introduce to you here is not a metal faucet, but a faucet with simple structure and scientific principles. There is still a story! It was an accidental opportunity when I was in the third grade of primary school. I came across it while playing with discarded plastic bottles.
Let me show you its magic. First, the production method The production process of the faucet is quite simple. Please come with me.
First, find an empty plastic bottle with a suitable size, such as Wahaha and Nongfu Spring, and make one or several small holes in the bottom of the bottle with a small awl, so that the "faucet" is ready. But it should be noted that the size of the hole must be appropriate, not too big or too small as far as possible.
Now, let's pour the water into the bottle, either half or full. Tighten the bottle cap. Isn't the water coming out? If the water comes out, it means the hole is too big. But it doesn't matter if you do it again. Try it a few more times and you will succeed.
Now, let's unscrew the bottle cap slowly, remember it must be slow, and we can't unscrew it at once. Observe the phenomenon at this time, and you will see that the water flows out of the bottle like a trickle, and then tighten the bottle cap, and the water suddenly stops. Why? I think everyone is as full of doubts as me! Second, the production principle with doubts, I consulted my father who taught science in middle school and finally understood the truth.
The original "faucet" is the principle of atmospheric pressure. Atmospheric pressure is everywhere, but we don't feel it at ordinary times.
In the above production, when we tighten the bottle cap, the atmosphere above the bottle can't get in, and the atmosphere below can hold water through the small hole, so the water can't come down. Once the bottle cap is opened, the atmospheric pressure above and below is offset, because water also has weight and naturally goes down.
Thirdly, regarding the use of the "faucet" I made, although it is not an invention, I think it can be used in the following places, such as feeding water to patients and watering bonsai. Please help me come up with more and better schemes.
Fourth, the feeling of production Through this small production, I feel that I have not only exercised my hands-on ability, but also broadened my thinking. More importantly, it enriches our primary school life. Why not? Students, please pay more attention to the phenomena around us, because science is around us.
7. How to write the scientific composition of the fourth grade primary school "The Garden of Science, the reverie of life, the discovery of experiments and the mystery of the universe"? . It has condensed the wisdom of countless people and aroused the curiosity of countless people.
I was deeply attracted and took a time machine to the Science Museum: a child has a pair of magical eyes with blue pupils, which can emit light blue light under the illumination of light. He can only see things within 10 meters during the day, but at night his eyes are sharp and he can read and write when he can't see his fingers. After scientific research, it turned out that albinism was at work; The mystery can also be found in a small experiment. Put three peeled apples in three bowls, and there are different changes. Only the apples in the salt water bowl will not turn brown. Do you know why? There are countless mysteries waiting for us to decipher in the vast universe. This time, the seven gods asked the sky and realized a step in space. It is our dream to build a space station in the universe in the future, and the people of China are working hard to realize this dream.
Every flower in the garden represents a mystery, waiting for us to explore. Young masters in the new century let us all have a curious heart to solve the unsolved mystery of the world! As Newton said: the sea of truth, let all the undiscovered things lie before my eyes, let me explore.
8. Write a composition about how science works on campus. Today, the popular science shinkansen-"Science enters the campus" came to our school. The teacher took us to the science and technology exhibition. The things in it were beautiful and interesting.
I played the skinless drum first. I knocked on the skinless drum with my hand, and the sound came from the small stereo, and I could hear different drums beating.
I played caged birds again. I'll start the button first, which will make the motor turn. Oh, this and that are dazzling.
Haha, this is really fun. This is an interesting bubble. I kept pressing the air pump, and small bubbles came out. The teacher said it was formed by heavy oil. Small bubbles with "rainbow" on them.
That's a strange name-you can see it, but you can't touch it. I pressed the button and a little doll appeared in my sight. But when I reached out and touched it, I found nothing.
This should be very popular, that is, the digital 3D cartoon cinema. There are many people waiting in line in front, but fortunately I have seen it. What I saw was an alien with a pair of tentacles and black eyes on his head. This is not bad.
I finally played the time response test. I measured it. As soon as I pressed the button and waited for the light to appear, I pressed it again. It turns out that my reaction is quite fast.
"Line up, line up." A voice sounded in my ear. It turned out that we were going back to the classroom, and we reluctantly left.
This popular science shinkansen-the activity of "science and technology into campus" is really good!