Magick is the realm of causal reality not yet fully explored by our material understanding. Science is litterally knowledge, and specifically it is knowledge that is demonstrable in the material world in one way or another. Science follows a low of observation and hypothesis, which can be applied to magickal exploration as well. However, unlike Science, magick is a science of subtle observation, hypothesis, and experimentation. It is a science, to those who possess the necessary equipment for observation. The same equipment used to observe material reality, but the magician employs those tools, the senses, on the subtle reality rather than the material.
While science and magick are arguably the same, mutually capable - in the long run - of explaining one another, they function on the two sides of the same coin of reality - the gross material, and the subtle astral. Each reaches far into the other, as that division is a spectrum, not an absolute boundary.
Chaos theory, quantum causal fields, etc., are where that overlap is beginning to manifest. While both science and magick will take their respective perspectives on these new understandings, science will never call quantum vibrations magick, any more than a magick will call the astral science. This is one of the most talked about subjects amongst those that have a mind for both subjects.