A theory is the framework used to explain observations and make future predictions. In science, theories are often used to offer broad explanations to fit observable facts in the event that the underlying cause has yet to be discovered or defined.
The scientific method is a process through which scientists attempt to create an accurate understanding and representation of the world. Theories and hypotheses are created as an attempt to explain scientific observations and are later tested through experimentation. It is commonly said that scientific theories can never be proven, only disproved, thereby allowing the possibility for new and more accurate theories to be created.