It depends on what you mean by "that matter behaves, and will continue to behave, according to specific and established patterns and properties." If you mean that the laws of physics, chemistry, gravity, etc., exist and that matter will adhere to them, then it probably is. If you mean that matter will never act in a way contrary to our current understanding of those laws, then no, it is not. We know our understanding of those laws will change, in large part, as a result of matter not adhereing to our current understanding of those laws. If you mean whether it is scientific to exclude the possibility of miracles, then yes, it is scientific.