Probably astronomy, since the Bible implies that knowledge of the Universe can be found within oneself, because any human being is a creation made by God, just as is the Universe.
Well as a Christian I'll tell you some of them: Bats are a type of bird, insects have four legs, donkeys can talk and so can serpents. Also, the sky is a canopy holding back water, that's why we should stop space exploration, we may poke a hole in it and cause another flood!
Science is constantly changing. If you read a science book from 200 years ago, very little of it will be accurate by today’s standards. Only mathematical laws of nature remain the same. Newton’s equations governing motion and gravity, for example.