God Damn not this argument again

Everything in Science is a theory. Gravity is based on a theory. Germs are based on a theory. Science works on theories. After many tests, if the results are always the same, and it matches with the theory, the more confident scientists are. Scientists are always trying to break down the theory with different tests. If a theory can't be proven otherwise, it still remains. The moment ONE test proves the theory wrong, it's thrown out the window.
The theory of Evolution has been around for 150 years, and still hasn't been debunked. And those creationist claims doesn't count. To be a creationist you MUST deny some working function of nature--which Harun Yahya, as well as all creationists, do.