Describes a prelab activity, the chemistry report, that acquaints college students with the nature of the chemical(s) they are using in the laboratory. Methodology, experimental procedures and safety rules are emphasized, with particular emphasis on potential hazards, safety requirements and emergency procedures. (CS)

Describes an experimental procedure that can be used to determine the potential bacterial contamination of stagnant water in emergency laboratory eyewash bottles. Contains 11 references. (WRM)

Describes a method for the preparation of hydrogen gas which is safer than conventional procedures. The procedure and equipment are described in detail. (BR)

Describes a press conference that was used as a "teachable moment" when owl pellets being used for instructional purposes were found to be contaminated with Salmonella. The incident highlighted the need for safe handling of owl pellets, having a crisis management plan, and the importance of conveying accurate information to concerned parents.…

Suggests that Experiment 13.2 (c) of the Nuffield 0-Level Chemistry Course be banned since the oxidation of lithium under very humid conditions can cause an explosion. (LS)

Describes the experimental arrangement for x-ray analysis of samples which involves the following: the radioisotopic x-ray disk source; a student-built fluorescence chamber; the energy dispersive x-ray detector, linear amplifier and bias supply; and a multichannel pulse height analyzer. (GS)

Introduces an inquiry-based laboratory experiment in which students identify an unknown bacterial species by using techniques such as Gram staining. Uses an authentic problem solving approach in a scenario entitled, "What poisoned the apple juice?" (YDS)

Presented is an experiment in which students recover almost 90 percent of the original lead chloride thus saving on costs of chemicals and disposal. Included are experimental procedures and a discussion of typical results. (CW)

This publication is intended to be a resource for teachers and administrators who are responsible for the safety of students, and others, in the general areas where science instructing is occurring. The handbook is designed to assist teachers of science regardless of their background in science. Particular concerns such as laboratory safety…

REPORTED ARE 15 SELECTED PAPERS ON VARIOUS TOPICS OF CURRENT INTEREST WHICH WERE PRESENTED AT THE VARIOUS REGIONAL CONFERENCES DURING 1966 AND 1967. THE VARIOUS CONFERENCES HAVE AS THEIR MAJOR CONCERNS (1) RECENT TRENDS IN GENERAL CHEMISTRY, (2) CHEMISTRY FOR GENERAL EDUCATION, (3) TEACHING UNDERGRADUATE ORGANIC LABORATORIES, (4) THE INTEGRATED…

Discusses the culturing of microorganisms as a laboratory activity emphaszing the growth of microorganisms in food. Provides background and safety information, procedures, and additional ideas. The complete unit (teacher's guide, student worksheets, evaluation and assessment, and resources for students and teachers) is available from the author.…