First of all, "science" derives from the Greek word "sciens" which means knowledge. You see, contrary to popular opinion, getting a degree in 'science' does not necessarily make you knowledgable (just like going to church does not mean you're a Christian).
As for the second law of thermodynamics:
If the volume and energy of a system are constant, then every change to the system increases the entropy [...] entropy of the universe does not decrease. The molecules in one's body exist in great order; this only happens because the entropy of the rest of the universe is increased to a greater amount than the entropy of the body is decreased. Also, if the big bang is true, then the universe has a center (and therefore a boundary) and so the universe is a 'closed system' Being a closed system, no new energy is added, and therefore the univeral entropy is at an increase...
Please do not assume that all creationists don't understand how that law works.
check out the berkely website on thermodynamics if you want.