The theory of the United Kingdom derives from the technical terms in philosophy of ancient Greece. The word theoria, θεωρία, meaning “see, see, beholding”, and refers to the contemplation or speculation, as opposed to action. Especially is often compared to the theory of “practice” (Praxis, πρᾶξις of Greece) the term Greece to “do”, which is opposed to the theory as a theory involved do not do other than itself.
A classic example of the difference between the theoretical and practical use of discipline of Medicine: medical theory and theorizing involves trying to understand the causes and nature of health and disease, while the practical side of medicine seeks to make people healthy. Two things are related but independent, because it can be made possible for health research and disease without curing the patient, and very likely to cure the patients without knowing how to cure works.
The difference is between common in science theory and hypothesis. The hypothesis is empirically tested conjecture individual, while a logical theory of hypothetical collection are linked together into a coherent explanation of some aspect of reality and which have been individually or together received empirical support.