Practical writing is an article that tends to be used in practical work. It is concise and easy to understand, distinctive in the times and practical, and is widely used in our lives. It is also a kind of college entrance examination questions.

Natural science paper is a kind of paper, which has two characteristics: one is "small". Compared with formal academic papers, scientific papers have smaller topics and shallower contents, so their length is not long; The second is science. The materials of scientific papers should be true and reliable, and exaggeration or fiction is not allowed.

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Views should be put forward realistically after careful thinking and research, rather than arbitrary speculation or speculation; Language should be accurate, clear, rigorous and logical, and should not be ambiguous, ambiguous, obscure or careless. The third is creativity. Whether it is creative or not is an important criterion to measure small natural science papers.

In scientific and technological papers, we should put forward our new discoveries in observation, investigation or investigation, new methods used in experiments or production, new achievements made in scientific and technological activities, and new insights accumulated in the in-depth study of a certain scientific knowledge, which will give people some inspiration.