Answer the following question given this paragraph: In science, a law is a mathematical relationship that exists between observations under a given set of conditions. There is a fundamental difference between observations of the physical world and explanations of the nature of the physical world. Hypotheses and theories are explanations, whereas laws and measurements are observational. Q: In science, what do we call a mathematical relationship that exists between observations under a given set of conditions? Choices: - idea - theory - fact - law A:
Answer:
law