The Definition of a Theory
تعريف النظريه
1- A theory is an explanation of a phenomenon, the perception of system and order in something observed

2- It exists in the mind
النظريه يوجدها العقل
3- It has no tangible manifestation
هي شيء لانحس به ولا نراه.. فكره مجرده
4- It is an idea which constitutes the internal representation of a phenomena.
تعتبر نافذه الى داخل الظاهره