What is the difference between Science and Religion?
Science tries to discover how things work. That's really its whole job.
The main quality of science is to give answers that are unambiguous (if not perfect) and don't depend on who you are or what your history or beliefs are. Our best scientific results are repeatable for everyone (e.g. toss an apple and it'll fall pretty much the same way regardless of who you are). So science tries to give us the most shareable, inclusive and robust knowledge it can.
You can apply as little or as much faith as you want to science. You can take it as read that others have done the working, or you can train up and do the working yourself if you want to check it. About the only faith-based proposition that science relies on is that
the rules are the same for everyone -- i.e, nature doesn't play favourites with us based on who we are. So far, that's been very true.
I think it's harder to characterise what the 'point' of religion is, because people get a lot of different things from religion. But if we focus on just religious dogma -- the codified stories and beliefs -- we can find the same kinds of things appearing time and again:
- How did we get here?
- Where are we going?
- What happens when we die?
- How should we live?
So religion concerns itself a great deal with the purpose and point of life.
Theoretically science and religion can co-exist very amiably: one focusing on 'how'; the other focusing on 'why' and 'so what'. Agnostic scientist Stephen Jay Gould proposed such a thing, for example, in his idea of
Nonoverlapping Magisteria or NoMa. An unusually large proportion of scientists are agnostic or atheist, but some of our very best scientists have been quite religious too, so in practice there doesn't need to be a conflict between the two.
However, conflicts do occur.
Religion often claims absolute authority over the 'how', and frequently gets it wrong. Science never claims perfect authority over the 'how', yet consistently gets it right. I personally believe that the 'why' is really for each of us to decide, and that if we are to live an examined life, it must also be informed by our growing knowledge about the 'how'. In my view, religious dogma needs constant re-examination and revision against our growing body of scientific knowledge, and this makes me very skeptical about anyone (religious or otherwise) who claims an absolute monopoly on truth.
So I'm very skeptical of religious dogma, yet very encouraging of religious journies -- even when they are not my own.
Hope that helps.