Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. in its original sense, science was a word for a type of information rather than a specialized word for the pursuit of such knowledge. in particular, it was the kind of knowledge which people can communicate to each other and share. For example, knowledge about the working of natural things was gathered long before recorded history and led to the development of complex abstract thought. Scientific fields are commonly divided into two major groups: natural science and social science. There are also related disciples that are grouped into interdisciplinary applied sciences, such as engineering and medicine.
Science also work to generate new knowledge about how particular chemical affects the growth of plants and fossil energy forms deep in the earth. If the ideas help explain why individuals do science, one might still wonder why societies and nations pay those individuals to do science. Much science is done to understand how the toxins and wastes of our society pass through our water, soil, and air, potentially to our own detriment. Much science is also done to understand how changes that we cause in our atmosphere and oceans may change the climate in which we live and that controls our sources of food and water. In a sense, such science seeks to develop the owner's manual that human beings will need as they increasingly, if unwittingly, take control of the global ecosystem and a host of local ecosystems.