An introductory guide to deducing the mechanism of chemical reactions is presented. Following a typical workflow for probing reaction mechanism, the guide introduces a wide range of kinetic and mechanistic tools. In addition to serving as a broad introduction to mechanistic analysis for students and researchers, the guide has also been used by…

This article attempts to provide would-be solar system designers with a few of the reasons behind the devices found in liquid media solar collection systems. (Author)

The concept of paraphyly is defined and its importance in the teaching of evolution and taxonomy is discussed. Examples are included to illustrate this concept. A list of 14 references is provided. (CW)

Describes a high school physics teaching sequence including more modern topics. The first quarter covers cosmology, astronomy, optics, wave mechanics, relativity, gravity, and quantum theory. The second quarter covers classical mechanics. The third quarter covers electromagnetism and electronics. The fourth quarter consists of thermodynamics and…

Four questions related to rain concerning aerodynamic drag force, pressure from the impact of raindrops, impact of wind on the pressure, and stopping force extended on the car by the water are proposed. (YP)

Described is the use of an interactive terminal-oriented computing system that has access to files of thermodynamics data. (Author/SA)

Describes unexpected experiences with student laboratory activities. Makes recommendations for addressing two types of lab disasters: (1) when lab preparations fail prior to the beginning of lab; and (2) when students produce unexpected results with the proper use of materials. (Contains 11 references.) (WRM)

This paper urges educators of deaf students to make a greater effort to teach science conceptually to foster real understanding and produce scientifically literate students. The state of science education in general, and for deaf students specifically, is reviewed. Recommendations stress process-oriented teaching, cooperative learning, and…

Presents a code of ethics to guide educational research, grouped in the following categories: (1) responsibilities to the field; (2) research populations, educational institutions, and the public; (3) intellectual ownership; (4) editing, reviewing, and appraising research; (5) sponsors, policymakers, and other users of research; and (6) students…