Science is an orderly knowledge system based on testable explanation and prediction of the form and organization of objective things. In an ancient and closely related sense, "science" also refers to the discipline itself that can reasonably explain and reliably apply knowledge. In modern usage, "science" often refers to the pursuit of knowledge, which is not only a way of knowledge itself, but also often limited by the study of these branches that seek to explain the material world.
What we usually call science refers to natural science, that is, natural science is usually referred to as science for short, excluding sociology and thinking. Including what we usually call science and technology (short for science and technology), science also refers to natural science (including natural science only). Science is the summary, induction and authentication of the known world through data calculation, text explanation, language explanation and image display that the public can understand.
Extended data:
Since the classical times, science, as a kind of knowledge, has been closely linked. Scientific methods laid the foundation, emphasizing the reproducibility of experimental data and its results. In the early modern western world, "science" and "natural philosophy" can sometimes be used interchangeably. In the western world, until the 7th century, natural philosophy (which later became natural science) was regarded as an independent branch of philosophy, with the same origin as materialism.
In the17th century and18th century, scientists increasingly sought to formulate knowledge about natural laws, such as Newton's laws of motion. In the course of the19th century, the word "science" has been increasingly associated with the scientific method itself, in order to study the disciplinary methods in the natural world, including physics, chemistry, geology and biology. It was in the19th century that the word scientist was distinguished by naturalists as knowledge of nature and knowledge creation.
References:
Baidu Encyclopedia-Science (a practical way to know the world)