Falling down into layman terms here for one second, as I don't have any formal training or credentials beyond high school (and even that I think I ditched most of the time ).
Science, from what I gather (and withhold here all the actual scientific methods which get confused quite often with the actual question of what is Science?) is a word to describe the process we go through in order to explain the various aspect of the world we see, and of course the worlds we don't...
Science, Religions, Philosophies, they are not seperate beings, but rather, to some extent of course, all simply try to do just that - search for answers to give meaning (reasons) for the things that happen around us.
Let's not forget, science in the beginning had much support from within the church... (only when it became apparent that it is, um, different from the teachings they kinda like started rejecting it).
anyways, just my two cents here, and a dime, and an agora if anyone cares what it is