What is a scientific theory?
A scientific theory refers to a collection of concepts put across as experimental properties which show the relationships between their observations. For more, visit http://en.wikipedia.org/wiki/Scientific_theory.
The best possible explanation for an event that occurs in science. It can be a well backed-up hypothesis, but it cannot be proven unlike a scientific law.
Something that is not fully proved true or something on the verge of a becoming a scientific law.