1. The results of the scientific method are hypotheses usually stated in the form of equations such as E=mC^2.
2. For that statement to be true it would have to be true over all time and space.
3. We are unable to validate that statement over all time and space.
4. For any hypothesis you can imagine, whether stated as an equation or as a sentence, there is no way to validate it over all time and space.
5. Therefore, none of the results of the scientific method (hypotheses) can ever be 'proved', i.e. shown to be true over all time and space.
You get an ‘A’. Thank you.