A university English professor was new to the campus. He heard some students discussing a final test that was coming up. The students had a copy of the test in one of their sciences class. They were laughing because the science professor in this class used the same test every year that he had been there. The new English professor went to the old seasoned science professor and asks why in the world he used the same test year after year. The older professor looked at him and smilingly said - In science the questions always stay the same it’s the answers that change.