What is science? How does science work?
Science, in simplest terms, is a systematic study of processes and events around us. Anything and everything that happens around us, and in the universe, has some underlying mechanism and science helps us understand why it happens. Science enables us to not only understand a particular event, but also to predict similar events. Thus, we garner knowledge and information about our surrounding and universe.
Science uses observation and experimentation to develop hypotheses and test them. In general, scientists observe an event or process and come up with a reasonable and testable hypothesis. That hypothesis is then tested through experimentation (whether in the laboratory or out there in the field, etc.). Based on the experimentation results, scientists accept modify or reject a hypothesis. This process goes on and on, till enough supporting evidence is collected to form a scientific theory.
Hope this helps.