Scientific inquiry is built on robust frameworks that include theories, laws, postulates, and principles. Theories, like evolution by natural selection, offer broad explanations supported by extensive evidence and repeated testing. Laws, such as universal gravitation, describe consistent natural relationships observed through experimentation, while postulates serve as assumed truths that form the basis for logical reasoning, exemplified by special relativity. Principles, including the uncertainty principle, provide foundational truths that steer our understanding of the natural world.