This is a useful little notion.
Some people think that in science, you have a theory, and once it’s proven, it becomes a law. That’s not how it works. In science, we collect facts, or observations, we use laws to describe them, and a theory to explain them. You don’t promote a theory to a law by proving it. A theory never becomes a law. This bears repeating. A theory never becomes a law.
In fact, if there was a hierarchy of science, theories would be higher than laws. There is nothing higher, or better, than a theory. Laws describe things, theories explain them.