According to Eugenie Scott, methodological materialism---the view that science attempts to explain the world using material processes---does not imply philosophical materialism---the view that all that exists are material processes. Thus one can consistently be both a scientist and a theist. According to Phillip Johnson, however, methodological materialism presupposes philosophical materialism. Consequently, scientists are unable to see the cogency of supernatural explanations, like creationism. I argue that both Scott and Johnson are wrong: scientists are not limited to explaining tbe world using (...) material processes and science does not presuppose materialism. Thus scientists’ rejection of creationism is not irrational. (shrink)