Unlike the metaphysical chop suey in which ID frequently gets entangled, science seeks natural explanations for natural phenomena. It does so by logical inferences from observable facts, experimentation, and verification and relies on reason and evidence. In reason, as Keith Lockitch (a Ph.D. In physics) asserts, one accepts only conclusions that can be proven to be true--conclusions based on sensory evidence and logical inference from such evidence. Faith, on the other hand, is belief that is not supported by facts or logic. It embraces ideas and concepts despite an absence of evidence or proof. But, it would seem, the only ideas that are reasonable are those you know to be true by means of reason, that is, through observation, identification, description, experimental investigation, and theoretical explanation of phenomena.
Most scientists maintain that scientific investigation must adhere to the scientific method, a process for evaluating empirical knowledge under the working assumption of methodological materialism , which explains observable events in nature as a result of natural causes, rejecting supernatural notions. ( from Wikipedia, the free encyclopedia)