in scientific and technological activities, observation records should be made when observing experimental objects; When conducting an experiment, you should write an experimental report; In order to introduce a scientific and technological 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 composition is an important content of practical writing at present.

Li Yu

Why do you want to 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 a country's prosperity and people's well-being. 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. In primary schools, extracurricular groups for science and technology have been organized, and "Five Small Activities" centered on "small observation, small report, small experiment, small invention and small production" have been carried out, so as to cultivate scientific and technological interests and hobbies, and to exercise the ability of observation, thinking and doing it yourself. 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 also consistent with the Chinese teaching task of initially cultivating primary school students' ability to write practical articles. Besides, 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, taking an active part 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-purpose thing.

There are observation records, experimental reports, investigation reports, production instructions, and popular science essays that introduce scientific and technological knowledge.

The writing of these articles has many requirements in common.

first of all, it is faithful and reliable.

Science and technology are honest things, which require accurate disclosure of the objective laws of things, and should be tested in actual combat. Scientific and technological composition is a true reflection of scientific and technological activities, and it also requires truthfulness and reliability, and it is not allowed to be invented and fabricated, even the most minor details should be accurate. If a chemical is introduced as non-toxic, then it is necessary to repeat experiments and analyze various internal components to prove that it is non-toxic, and then the word "non-toxic" can be written in the instructions, which should be absolutely true.

Secondly, scientific and technological compositions must be concise.

scientific and technological compositions must be clear in content, but not too long. In short, it is simple and clear. Sometimes, in order to achieve the purpose of conciseness, it is necessary to use charts to explain it at a glance. What is related to conciseness is the use of words. Any composition introduced to general readers should use as few technical terms as possible, because technical terms are only understood by professional technicians. Most people don't understand it, use it too much, and those who write it think it is clear, while most readers think it is not clear 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 written experimental reports and other articles can meet the specifications. The general format is divided into several items: title, preface, main body and ending. The name of the experimental report in the title should generally be clearly written, such as the Experimental Report of Climbing the Wall with Climbing Tiger. The purpose, time, object and method of the experiment should be clearly written in the preface. The main body is the core part of the report, and the process of the experiment and the data obtained in the experiment should be clearly written. At the end, we should analyze the experiment, write concluding comments, or put forward suggestions for future experiments.

Fourth, the language of scientific and technological composition should be accurate and simple. Don't pile up adjectives, and use words and sentences repeatedly to be accurate and unambiguous.

technology and life

technology is everywhere, which makes us feel extremely proud, and our food, clothing, housing and transportation are inseparable from the contribution of technology.

inventions and creations in the 2th 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: the pearl that never sleeps ...

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 electric energy in life originated in 182. In an experiment, Danish scientist Oster accidentally brought 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 cores at both ends of the wire to the positive and negative levels of the battery. Then we put the wire close to the small compass. At this moment, we observed that when the wire just approached the compass, the compass suddenly turned around. After disconnecting the current, the compass was as quiet as a child who had 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.

Technology supports civilization and creates the future. The future is in our hands. Let us become explorers of knowledge, roam on unknown roads and make the world we live in more beautiful with endless creativity!