油脂与文明：穿越时空的油脂发现之旅

Oil, this seemingly ordinary yet indispensable substance, its discovery and application are a great miracle in the history of human civilization development. In the distant ancient times, people accidentally discovered the existence of oil. Perhaps it was beside the fire after hunting, when oil dripped from the fat of animals, making crackling sounds, accompanied by the aroma of roasted meat. Or perhaps it was when picking fruits, when oil seeped from the seeds of plants, and that subtle flowing sound seemed to tell the mysteries of nature. The discovery of these oils not only satisfied the ancients' need for food but also opened the door for human exploration and utilization of oil, thereby promoting social progress and development.

Entering the China Oil Museum, children were first attracted by the splendid sunflower fields before their eyes. The children curiously shuttled among the golden flower clusters, observing the arrangement of sunflower seeds and listening to the teacher's detailed explanation of the growth environment, planting process, and characteristics of oil extraction of sunflowers.

Here, children can not only visually understand how oil is extracted from seemingly ordinary plants but also learn the scientific knowledge and cultural stories behind oil-bearing crops. They began to realize that these plants that are not usually noticed are actually closely related to our lives and are an important part of the development of human civilization.

The eyes of the children sparkled with the thirst for knowledge and awe of nature. They learned to observe the world with a new perspective and think about the relationship between humans and nature.

In the exhibition area of the primitive era, children seemed to travel back to that ancient time. The ancient firelight reignited before the children's eyes. Under the illumination of the firelight, the oil sparkled with golden brilliance. Children could clearly see the dripping of oil on the fire, which was a kind of primitive and pure energy release.

Children understood that oil is not just a substance; it is more a sign of the progress of human civilization and an embodiment of human wisdom. Their imagination spread infinitely, and they had a deeper understanding of the discovery and application of oil.

The extraction methods of oil are a long and wisdom-filled journey, which witnessed the progress of human civilization and the development of technology. In the extraction technology exhibition area of the China Oil Museum, children seemed to be in a time tunnel, witnessing the evolution process of oil extraction technology. From the initial manual pressing to modern mechanized production, each technology carries human beings' pursuit of a better life and a profound understanding of nature.

In ancient times, oil was not just a medium for cooking; it played multiple roles in human life. Oil was used as lamp oil for lighting, bringing light to the dark nights. It was also used in medicine to treat various skin diseases. In religious activities, oil was used as an offering. Oil was also an important raw material for making soap and lubricants. Its application was almost everywhere in ancient life.

Children curiously observed various ancient pressing tools, such as stone mills and wooden presses, which were quietly displayed in the exhibition area, telling the vicissitudes of history. Even a tiny drop of oil contains the wisdom and sweat of countless generations.

In the 1880s, the Chinese oil industry began to introduce mechanical power, marking the beginning of China's modern oil industry and flowing into the torrent of the development of modern Chinese national industry.

The oil industry in modern China has undergone earth-shattering changes, from the initial single variety to the present dazzling variety of oil products. Both the output and quality of oil have achieved a qualitative leap. These achievements have not only improved people's living standards but also made important contributions to China's economic development.

During the visit, children had a more intuitive understanding of the development process of China's oil industry. They saw how the oil industry evolved from simple manual operations to today's high-tech automated production lines. Children are proud of the achievements of China's oil industry and also realize the importance of technological progress for a country's industrial development.

"People regard food as the heaven, and food depends on grain." The earliest food vouchers in the world appeared during the Spring and Autumn Period and the Warring States Period. A bamboo-made bamboo stick shaped like an arrow was called a grain voucher. The "Grain Receipt Ticket" issued by Tongchuan Prefecture in the 32nd year of Emperor Qianlong of the Qing Dynasty was the earliest occurrence of the term "grain ticket" in China so far.

In the exhibition area of grain and oil tickets of New China, children seemed to walk into the corridor of history. These yellowed oil tickets before their eyes are not only the marks of time but also the true portrayal of life in that era. On the grain and oil tickets, various names and quantities are clearly visible. They are the witnesses of the shortage of materials during the planned economy period and are indispensable important vouchers in people's daily lives.

Children stared at these oil tickets, listening to the teacher telling the stories of that era. The teacher recounted how people at that time relied on oil tickets to exchange for limited oil under the condition of scarcity of materials. That was a kind of cherishing of resources and a kind of insistence on life. The children's eyes sparkled with curiosity about the past and awe of history.

Children left the China Oil Museum reluctantly with full harvests and new understandings. Through this study tour, children have a more comprehensive understanding of the development process of China's oil industry, from ancient oil extraction methods to modern factories, from oil lamp lighting to oil ticket exchange. The development of the oil industry has witnessed the huge changes in Chinese society.

Children are proud of the achievements of China's oil industry and also realize the importance of technological progress for a country's industrial development. Oil has become a bridge connecting the past and the future, nature and civilization.

YKI believes that every study tour is a precious asset for children's growth. We will continue to provide more such opportunities for children, allowing them to learn in exploration and grow in discovery.