None of them are facts? That isn't true. They've been proved to be a fact through research, study, and development. Prove to me that they aren't a fact. I could use your exact same argument for religion.
No. In science they aren't facts. They are held up against to be proven against... what? Other theories? This isn't science vs religion and that is not the point of view of what is being said.
We are taught these theories because they are so concrete that no one has bothered to test against them because they've held up against time. This can (and has) be changed, however. Hence why, science isn't fact, it's theory.
Another scientific theory can debunk a scientific theory. If this can happen, is it fact?
And to use a very overused but very simple example: Pluto.
Yet instead of contributing useful, you post posts like this. If you don't want this to turn into yet of those threads, you should avoid posts like this. There isn't anything in the rules against posting threads like this.
I am contributing to the thread. I'm commenting on two things stated in the original post you wrote yourself. :|