Step #5:
THEORY
Additional observations gathered during the experimental step, is evidence that forms the basis for developing a theory. When a hypothesis has been supported by convincing evidence, that hypothesis becomes a theory. Not all evidence needs to support the hypothesis for the hypothesis to be accepted. In fact, a theory is usually accepted when it has been supported in many laboratories by many scientists throughout the world, in spite of some evidence that seems to reject the hypothesis and thus the theory. A good theory has good predictive value. It prophesies certain results, that is if the theory is indeed a good one, then certain conditions, results or other expectations are likely to happen and can be predicted at a given level of probability.
When a theory has been supported so well that it becomes universally valid it is called a natural law. However, the term "law" has an absolutic tone and non scientists may think that natural laws are indeed absolute. For example, the "law" of gravity. It may be irrational to ever expect an apple to rise upward from a tree but there is no absolute guarantee that it would never happen. For example, it has been demonstrated that gravity actually bends as it nears a black hole! Einstein has predicted that as one travels faster, time actually slows down! Thus for so-called natural laws, it is unscientific to consider them as absolute. Remember, there are no absolutes in science. Thus we should consider scientific "laws" as scientific "principles" that are always subject to questioning and future testing for validity. That should remove the possible misunderstanding that laws are absolute.
So with all theories, "laws" or principles, the work of science as a human endeavor, is never finished. Every conclusion made from scientific experimentation must be testable, that is it must be falsifiable. There will always be a region of uncertainty, and this is referred to as the "Uncertainty Principle" of science. We will never have the final answer or the absolute "truth". No one will have knowledge of the gods.