A scientific theory is simply an explanation into how the natural world works. Scientific theory is formulated after a series of hypothesis that has ascertained how true an observation is.
A theory is provides explanation into an observed feature. It can be disproved when new evidences are found. This brings about revision into scientific proofs.
i think these are correct if im wrong on a few im sorry. Hope this helps at least a bit. And if i do get some wrong you know just to pick the opposite answer.