Very simply science works really well in explaining how things work. This does not argue that religion has no place in the human experience. Some may argue that either the religious or scientific experience can stand alone, but this seems rather untenable. It is doubtful that anyone outside a handfull of the remaining gathering-hunting societies would or could choose to set aside the scientific understandings that permeate our lives. Similarly it does not seem likely we can live without a religious experience.
All people live by some type of religiously based code of conduct.
Science on the other hand is not immoral, but it is amoral, making no ethical or moral statements at all. Ah, but now we get to the real sticking point. So here people construct a conflict by attempting to mix science and religion, producing an ad hoc combination of the two, a pseudoscience called creationism. To better understand the limitations of the religious and scientific experiences, consider how different they are in use. Remember, science is a process for understanding the natural world, while religion is a belief system.