Science is a body of knowledge about the natural world that is studied through scientific methods like observation, hypothesis formation, experimentation, and prediction. A theory in science, like the theory of evolution, is a hypothesis that has been repeatedly tested with little modification, while a scientific law describes a fundamental principle like Newton's law of gravity. The scientific method involves making observations to define a problem, formulating hypotheses to explain it, experimenting to test hypotheses, and concluding whether the hypothesis was supported or rejected and needs modifying. Science is empirical and theoretical, relying on both experience and theoretical explanations of phenomena.