Different between Fact and Theory

          The characteristic of fact is it was real and has been prove which unable to change it and it suitable and ready for the observation. The fact is well- known and has been tested with many time and with the same result. The example of facts is we cannot breath and keep survive if we do not have oxygen.  While theory is the the explanation to what has been observed. Usually the hypotheses testing is used to help in to decide the accept or reject of the theory. For example, the brand of the product will affect the customer satisfaction. In some situation the theory maybe can be accept but in some situation the theory are be rejected.