Includes seven topics relating to laboratory activities, procedures and materials suitable for use in general science classes at the secondary and upper elementary level. (JR)

Condensed version of a speech presented to the German Society for Applied Linguistics in October 1970, Stuttgart, Germany. (WB)

Suggests that ideal experiments fit into course time constraints and be meaningful, relevant to course content, safe, inexpensive, simple, reproducible, and easy to set up/maintain. Describes a Boyle's Law experiment that uses a minimum of equipment and meets the foregoing criteria. Apparatus used, procedures, and safety precautions are…

The purpose of constructing labels is to communicate those scientific facts related to hazards and to select and describe the reasonable precautions that should be taken to prevent otherwise unforseeable harm. Recent developments in the use of combined numeric and pictorial symbols in chemical label construction are described. (JN)

The threat of instrument obsolescence and tight federal budgets have conspired to threaten the existence of research analytical laboratories. Despite these and other handicaps most existing laboratories expect to keep operating in support of basic research, though there may be serious penalties in the future unless funds are forthcoming. (Author)

Pinpoints common areas of neglect in considering science safety. Familiar hazards are discussed, with special consideration of improper chemical storage, old and unlabeled chemicals, and faulty circuits and equipment. An appendix lists basic safety rules and presents a checklist for general laboratory safety. (CS)

Described is a physiological model which solves a set of interacting, possibly nonlinear, differential equations through numerical integration on a digital computer. Sample printouts are supplied and explained for effects on the components of a cardiovascular system when exercise, hemorrhage, and cardiac failure occur. (CS)

Details the possibilities for and the needs involved in the use of the language laboratory. Included are descriptions of the laboratory as a broadcast/library facility, as well as descriptions of the hardware and software involved. Hardware includes video, video disc, and computer systems. (PJM)

Presents three methods for removing silver nitrate stains, using (1) aqueous potassium iodide; (2) potassium ferricyanide in water; or (3) copper sulfate or chloride in water. (CS)

Presents two articles which are part of a series concerned with safety in school science in the United Kingdom. The two articles deal with restricted chemicals and experiments. (HM)

A listing of mathematics laboratory material is organized as follows: learning kits, tape programs, manipulative learning materials, publications, math games, math lab library, and an alphabetized listing of publishers and/or companies offering materials. (MP)

Presents background information, procedure, and results of an experiment, using easily obtainable chemicals and equipment, illustrating chemical kinetics. The experiment may be done in a letter as one four-hour physical chemistry laboratory period. (JN)