If you want to study the pollution degree of a certain water area closely related to people's lives, the air pollution source in a certain place, and find out the evolution process of a strange mountain, the animal and plant resources and distribution in a certain range, you have to make a field trip. A small paper written through investigation, interview and field investigation is called a scientific investigation small paper. Sometimes it is also called "scientific investigation report" and "scientific investigation report".

In the article "Evergreen Water of Zhushengtian Reservoir", which won the first prize in the 5th National Youth Science Symposium, the author made a field investigation on the geographical and ecological environment and water storage capacity of the reservoir, and made a field measurement as far as possible, found out the hidden dangers of the reservoir and put forward more reasonable suggestions. This paper expounds the time, object, content and conclusion of comprehensive analysis, and draws "Rain Collection Map of Shengtian Reservoir" and "Schematic Diagram of Strong Erosion in Zhongshan City", combining with some practical data, so that readers can have a more comprehensive and clear understanding of the investigation object.

When writing a small paper on scientific investigation, it is sometimes specimens or photos of animals, plants, rocks, soil, etc. It should be attached to the text to enhance persuasiveness.

(D) scientific explanation essay

Scientific interpretation prose refers to a kind of prose in which the author uses accurate and reliable information to explain and explain a natural phenomenon or thing. Generally speaking, it does not directly adopt research methods such as observation, experiment and investigation, but mainly obtains rich second-hand information from books, periodicals and teachers, and expounds a certain point of view in a language it understands through its own comprehensive analysis and logical reasoning.

"Why Guiyang is the Second Spring City of the Motherland" is a small paper that won the third prize of the Second National Youth Science Seminar. The author's research methods have their own characteristics. First, insist on using radio and television records to sort out the weather and temperature in Guiyang and Kunming; Second, using the ready-made scientific research achievement "China Climate Atlas", find out the representative temperature situation in Chongqing and Beijing and compare it with Guiyang and Kunming; The third is to verify the average temperature of Kunming and Guiyang in June, April, July and June, and then draw a conclusion through comprehensive analysis.

Although this kind of articles are not supported by the first three personal practices, they put forward new ideas and opinions through careful collection and comprehensive analysis by the author, so they are also recognized as scientific essays.