There are a few reasons why a teacher might answer "because I said so", and some of these would apply to RE teachers too ...MajGenl.Meade wrote: I remember getting into a lot of trouble at Dover Grammar for Boys when I challenged the physics teacher on gravity - "Why couldn't space be like holding a blanket and putting some tennis balls and marbles on it and they'd settle into depressions?" I was 14 and hadn't heard of Einstein. "Because I said so!" So that just confirmed my hatrred of science classes (along with math with all those ridiculous sines and cosines and tangerines).
1. Teacher doesn't understand the subject properly
2. Don't bother asking - the pupil wouldn't understand the answer (definitely the case with such a question)
3. Answer would take too long to explain
It is a shame though: the answer is hardly likely to inspire a child into the wonders of science, which I believe is an important part of a science teachers role. Says a lot about your physics teacher.