[Recommendation for other anthropology students: when it comes to debates surrounding the ‘science’ in anthropology, try to avoid it. It’s dangerous, slippery terrain that might go no where. Also, do not under any circumstance cite wikipedia.]
And where do we find our answers? WIKIPEDIA. Woot.
Definition 2: “A broader modern definition of science may include the natural sciences along with the social and behavioral sciences, as the main subdivisions of science, defining it as the observation, identification, description, experimental investigation, and theoretical explanation of phenomena. However, other contemporary definitions still place the natural sciences, which are closely related with the physical world’s phenomena, as the only true vehicles of science.”
So Wikipedia provides us with two common uses, showing where the confusion comes. Why such confusing definitions? Well, for a long time it was all philosophy. So go figure.