We get the word science from the Latin scientia, which means knowledge. In fact, science is a systematic approach to discovering more about the world around us. This involves observation, reasoning, discovering and establishing patterns to determine facts.
Science as we know it is thought to have begun in Babylon with the priests of the time of Nebuchadnezzar working to calculate the course of the planets and plot the orbits of the sun and moon using observation and mathematics.
Greek science was more secular. Although influenced by Egyptian mathematics, the Greeks came to favor more deductive processes in which knowledge was built utilizing thought. Still, the ancient Greeks did develop ideas “surprisingly similar” to modern scientific concepts.
In China, they were drawn into astronomy and developed geometry out of a need to measure land. They also invented gunpowder, paper, and the compass, but innovation slowed during the Han dynasty (206 BCE – 220 CE).