Answer:theory; hypothesis
Explanation:
hypothesis refers to a suggested idea that is taken from an observed phenomenon mostly between two variables , this idea still need to be further tested in order to be accepted or rejected.
A theory on the other hand is a principle which explains events that has already been investigated and can be substantiated by data and evidence , which means it has been proven and verified.
Hypothesis is only a proposed presumption of that hasn't been proven or verified but still need to be evaluated through a test. It is usually formed before the test is carried out based on what had been reviewed.
Theory is accepted by most Scientists like the Big Bang Theory.