Appropriate as a supplemental reader for majors-level introduction to science courses as well as introductory courses in all sciences - biology, chemistry, physics, and the geosciences. This broad collection of accessible essays helps students develop a fuller appreciation of the nature of science and scientific knowledge in general and of their own discipline specialty within it. The focus throughout is on the relationships in science between fact and theory, about the nature of scientific theory, and about the kinds of claims on truth that science makes.