Asks whether what is taught in science class only makes sense to someone who already understands science. Discusses school science in terms of four questions: (1) What is to be taught?; (2) What conditions promote learning?; (3) What do students learn?; and (4) What are the cognitive processes in learners' minds? (Contains 17 references.)…

Presented is the extent to which pupils of different ages tend to confuse scientific and everyday meanings of "Law" and "Conservation." The concepts of resource economy, environmental concern, and the law of conservation of energy are discussed in terms of potential teaching difficulties. (KR)