Define science?

Science (from the Latin word scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. The Universe represented as multiple disk-shaped slices across time, which passes from left to right The earliest roots of science can be traced to Ancient Egypt and Mesopotamia in around 3500 to 3000 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes.[5][6] After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages but was preserved in the Muslim world during the Islamic Golden Age.

The intellectual and practical activity encompassing the systematic study of structural and behaviour of the physical and natural world through observations and experiment

Science is the study of nature and natural behavior and the knowledge that we obtain about them. Branches of science are physical science, earth science and finally life science.