Natural law is something that tells us what is good or bad, right or wrong. It is like a set of directions. It gives us a way to decide how we should act in different situations. Think of it like a set of rules that we can use to decide how to act when we don't know what to do. For example, it might say that we should help those in need, tell the truth, and take care of our environment. Natural law gives us a way to make sure that we do what is right.