Discusses development of courses in general oceanography at university levels. Designed for preservice elementary and secondary school teachers and general education students, the suggested courses are appropriate for inland as well as coastal universities and for instruction in the social and cultural impact of science. (JM)

The role of phosphates in environmental issues and in detergents is discussed. Experimental procedures are described for colorimetric determination of orthophosphates. (TS)

Describes and compares procedures and results of determination of colorimetric, potentiometric, and amperometric endpoints of an oxidative titration of arsenite by iodine. (TS)

Presents the recommendations and guidelines for the improvement of the physics instruction adopted by a group of physics educators at a conference in Eger, Hungary. (DS)

Describes a dry- lab" experiment for the college freshman laboratory, in which the essential features of Browian motion are given principles, using the Monte Carlo technique. Calculations principles, using the Monte Carlo technique. Calculations are carried out by a computation sheme based on computer language. Bibliography. (LC)

Presents some aspects of concept learning theory (what concepts are and how to analyze them) and proposes ways to improve the teaching of concepts in introductory chemistry courses. Emphasizes the lecture format, although ideas presented are applicable to other teaching methods. (Author/JN)

Clarifies misunderstanding of Millikan's experiment measuring charge on electrons. Most books describing the experiment indicate ionization of air in the apparatus caused liberation of electrons, and that these electrons were picked up by oil droplets. However, in Millikan's discussion, it is stated clearly that ions were attached to oil droplets.…

A Chemical and Engineering News survey shows that among chief executives in 20 U.S. chemical firms, 73 percent have some technical training; 53 percent of these have bachelors in chemistry or chemical engineering, substantially increased from a decade ago. Comments on the trend toward more technically trained management are provided. (Author/JN)

Discusses a conceptual scheme which may be used to unify the mathematical approach in chemistry. Includes sample problems demonstrating flaws in the present treatment of dimensional analysis, suggesting that such instruction should focus on relationships. Also considers who should teach rate concept and dimension analysis. (JN)

The continuous measurement of oxygen consumption in an enzymatic reaction is a frequent experimental fact and extremely important in the enzymatic activity of oxygenase. An electrochemical system, based on a polarographic method, has been developed to monitor the oxygen uptake. The system developed and electrode used are described. (JN)

Perceptual orientation (field dependence/independence) was related to 47 biology/earth science students' attitudes toward science. In addition, students who were field dependent and possessed a positive attitude scored significantly higher on a science achievement test than students who were field dependent and possessed a negative attitude. (JN)