To explain the difference between a fact, hypothesis, theory, and a law.
There are many different terms used in science, but a few of the most important include Fact, Theory, Hypothesis, and Law. These words are defined below:
Fact: A fact is an observation that is repeatedly confirmed.
Theory: A theory is a well substantiated explaination of an aspect of the natural world. This is the best possible explanation in science and is the "end point" in explaining a part of the natural world.
Hypothesis: A hypothesis is a testable statement regarding the natural world.
Law: A law is a generalization about how something works. It will describe behaviors.