Theory
Trials
A theory
A theory
A theory
When a scientific idea has been tested many times
Its generally accepted that there is. Hypothesis being an educated guess to be proven through experimentation and theory is a generally accepted idea that has been tested and not discredited but may be later on.
theory
Evolution is an observed and observable fact. The theory of evolution by natural selection explains many things about evolution. The theory generates testable hypothesis, as any good theory does. Remember, theory is the highest concept in science.
Because people use theory to describe what there opinion is when in fact a theory is hypothesis that has been tested several times and has been proving yet is not universally accepted. Some also regard theory as absolute fact, yet in turn a theory is not universally accepted although it does include factual analysis it is not an absolute law. I like to think of a Theory as a logical way of piecing together evidence to reach a conclusion.
A scientific theory is an extensively tested hypothesis that is accepted as the best answer we can come up with, since nobody has been able to prove it wrong yet.
It is saved in journals and other publications.
Theory