This manual of laboratory experiments in water chemistry serves a dual function of illustrating fundamental chemical principles of dilute aqueous systems and of providing the student with some familiarity with the chemical measurements commonly used in water and wastewater analysis. Experiments are grouped in categories on the basis of similar…

Presented are basic concepts of chemistry necessary for operators who manage drinking water treatment plants and wastewater facilities. It includes discussions of chemical terms and concepts, laboratory procedures for basic analyses of interest to operators, and discussions of appropriate chemical calculations. Exercises are included and answer…

Described is the computer simulation program "PH." The program consists of three different laboratory investigations dealing with the pH specificity of enzymes. The purpose of the program is to enable tenth- to twelfth-grade students to determine a possible explanation for pH specificity in an experimental, but mathematical, fashion.…

Reported is a study of the effects of audio-tutorial chemistry instruction to determine if: (1) students will respond to post-course questionnaire items consistently within a category; (2) responses to items concerning equipment would be consistent within a category; and (3) attitudes towards educational materials would be consistent within a…

Included in this publication are 12 papers related to teaching chemistry in a two-year college. The papers are presented in the following topic areas: (1) Learning Theory Applied to Chemistry; (2) Some Special Problems in Chemical Education; and (3) Current Concepts in Chemical Education. (SA)

The Toledo Chemistry Placement Examination was administered to the 163 students enrolling in general inorganic chemistry during the academic year 1967-68 in an effort to develop a way to screen enrolling students and reduce the large percentage of students doing poorly in the course. The product moment correlation between the Toledo scores and the…

This guide contains Parts III and IV of the students' guide to the first year of the three-year integrated biology, chemistry, and physics courses being prepared by the Portland Project Committee. Part III is titled "Energy and Work" and Part IV is titled "Ecology." (GR)

Students taking freshman physics and freshman chemistry at The State University of New York at Buffalo (SUNYAB) were administered a science-related semantic differential instrument. This same test was administered to physics and chemistry graduate students from SUNYAB and the University of Rochester. A scoring procedure was developed which…

Compared, for selected outcomes, were integrated chemistry-physics courses with chemistry and physics courses taught separately. Three classes studying integrated Physical Science Study Committee (PSSC)-Chemical Bond Approach (CBA), and three classes studying integrated Physical Science Study Committee-Chemical Education Materials Study (CHEMS)…

Included in this study were (1) construction of a teaching unit on charge cloud atomic structure for junior high schools, and (2) testing of student achievement based upon use of this unit as compared to students using a conventional approach. A unit was constructed utilizing material judged to be appropriate at this level by a group of chemists.…

In response to a provision of the Safe Drinking Water Act of 1974 which called for a study that would serve as a scientific basis for revising the primary drinking water regulations that were promulgated under the Act, a study of the scientific literature was undertaken in order to assess the implications for human health of the constituents of…

This publication is the first of a series of seven supplementary investigative materials for use in secondary science classes providing up-to-date research-related investigations. This unit is structured for grades 9 through 12. It is concerned with the osmatic dehydration of fruits. The guide provides students with information about food…

This module sketches out the impact of sewage organic matter on soils. For convenience, that organic matter is separated into the readily decomposable compounds and the more resistant material (volatile suspended solids, refractory organics, and sludges). The fates of those organics are reviewed along with loading rates and recommended soil…

This document is an instructional module package prepared in objective form for use by an instructor familiar with the azide modification of the Winkler dissolved oxygen test and the electronic dissolved oxygen meter test procedures for determining the dissolved oxygen and the biochemical oxygen demand of a wastewater sample. Included are…

This document is an instructional module package prepared in objective form for use by an instructor familiar with the titrimetric method for determining calcium concentrations in water. Included are objectives, an instructor guide, student handouts, and transparency masters. A videotape is also available from the author. This module considers the…