In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could bo produced A good example of this is foul in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion
A useful theory, in addition to explaining past observations. helps to erediet events that have not as yet been observed. After a theory has been publicized. scientists dosigtt experiments o test the theory tr observations confirm the scientists predictions the theory is Nupponed Ir observations do not confirm the predictiotal, the scientists must search further. There may be a faul in the experiment, or the theory may have to be revised or rejected