There is plenty of scientific evidence to refute the theories taught as fact, and plenty of scientific evidence to support Creation.
I believe in a young earth because I believe in the Scripture, and I know there are holes in the 'science' taught as fact, and I believe that the atheism in evolution has harmed our culture immeasurably, but that is, in the end, beside the point.
The point of this is that there are other theories as to the origin of the earth besides evolution, and they should be taught in schools.......as the theories that they all are.