As steam, it runs our powerful machinery. Other than bismuth, it is the only liquid that is heavier at four degrees centigrade than at freezing. This allows our lake to freeze from top to bottom. If lake froze from bottom up, then it would kill all algae on earth and we could not exist without our oxygen supply. God has lovingly supplied us with an abundance of water only on this planet called earth.
Science is based upon observation.
It is bad science to call an unobservable event a fact of science. Although astronomers have seen the destruction of some stars, no one has ever seen a star being born. Neither has any scientist ever seen anything evolve into a more complex structure. Yet astronomers talk and write about stars being born all the time. This of course, is faith, not science.