This would be called a well established theory.
Proven hypothesis or theory.
law.
It is a theory.
It is called a scientific theory. It is a better theory if it also suggests new research questions, and it is a very good theory if these new research questions result in findings that support it.
The Healing Touch program is backed up by scientific results. It is backed up by research by countless number of practitioners, who have documented their research to support the endeavours of the Healing touch.
This is a good question. In science, theory is a complete or nearly complete explanation for a phenomenon. A theory is a self-contained framework under which phenomena occur. It is the culmination of many experiments that strongly suggest the existence of this explanation. For instance, Einstein's Special Relativity is a clear explanation of how matter behaves when it is accelerated. Experiments end up showing that the theory is very likely to be true everywhere in the universe. Theories backed by experiments are highly respected in science and is what you want as a scientist, basically the highest level of scientific statement. In common usage, it is pretty much the opposite. Connotations are that theories are unproven speculation. This is seen when people say "It's only a theory," meaning that isn't necessarily true. In science, an explanation or model is a theory if it has significant support from the scientific community as factual or accurate.
No
the lady who backed into you, clearly she wasnt paying attention and backed into your car
sadly it is backed only by promises. It used to be backed by gold but that was taken away and now it is backed by nothing.
Regardless of denomination, silver certificates were a form of currency backed dollar-for-dollar with silver bullion on deposit in the US Treasury. Please see the Related Question for a more detailed explanation.
Whomever backed into it is at fault.
I backed away from the big dog.