What is the basis for scientific explanation

Experiential evidence is the actual basis for scientific explanation. Any scientific explanation has to be supported by proper experimental evidence; otherwise the scientific explanation is not given importance. Basically the experiment has to be done with proper reasoning to make the scientific explanation satisfactory for all concerned. Scientific method is a process that is ongoing. Based on the observations via properly done experiments, a scientist can come to a proper conclusion. Although the procedures followed during experiment may vary, but the final result should always be the same.