Hypothesis, Theories, and Laws are three different, but related things. You start with your hypothesis. With enough evidence, that hypothesis can become a theory. Then, if your theory is proven enough times and there is no other possible way, your theory can be made a law. A hypothesis is an idea. A theory, well, it's an idea that has enough evidence to back it up. A law is a fact that came from a theory.
Take the Law of Gravity for example. Isaac Newton didn't just know this was true. He saw an apple fall and that made him wonder why it fell exactly. So, he made a hypothesis that there was some type of force pulling things toward the ground. He did his research, conducted a few experiments, and once his work became a reliable source, it became a theory. A theory that something like gravity was pulling things toward the center of the earth. After we knew for certain that there was a force, and there was no other explanation, a law was formed; the Law of Gravity.
-Dr. Pepper
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