One of the key features of science is testability and reproducibility that results in facts. While archaeology does have some testability and reproducibility that results facts, such as carbon dating, this is rarely the be-all and end-all. Rather, these facts are used to support interpretations. Interpretations use various pieces of evidence as support, but they are in the end opinions. Interpretations are what are used in the humanities, whereas testable and reproducible facts are what are used in the sciences. Thus, while archaeology does incorporate some scientific elements, it is firmly in the camp of the humanities.