Describes a series of experiments designed for general chemistry in which the students prepare metal complexes which are then used as samples for spectral study. (SLH)

Describes a technique of quantitative analysis based on measuring the temperature change accompanying a quantitative reaction in solution. Can be used for delta-H measurements and quantitative determinations by comparison of data obtained for an unknown with that obtained for a series of standards. (SLH)

Describes a procedure for freeing an element from either a mineral or organic matrix with the use of a radioactive tracer to determine recovery of the elements. (SLH)

Presents a series of activities which focus on the study of the physical characteristics of water, including temperatures, opacity, pH-values, oxygen concentrations, reagents, and free CO2 concentrations. Indicates that ponds can provide the students with opportunities to learn chemistry, geology, biology, botany, and the effects of weather. (CC)

This document is an instructional module package prepared in objective form for use by an instructor familiar with the acid-base titrimetric procedure for determining the hydroxide, carbonate and bicarbonate alkalinity of a water sample. Included are objectives, an instructor guide, student handouts and transparency masters. A video tape is also…

Describes the production of an electrophoresis apparatus from commonly discarded articles. Outlines paper and gel electrophoresis and its application to the separation of amino acids and intestinal enzymes. (GS)

Describes a method for the determination of the velocity of sound using a dual oscilloscope on which is displayed the sinusoidal input into a loudspeaker and the signal picked up by a microphone. (GS)

This training manual presents material on the use of a compound microscope to analyze microscope communities, present in wastewater treatment processes, for operational control. Course topics include: sampling techniques, sample handling, laboratory analysis, identification of organisms, data interpretation, and use of the compound microscope.…

This learner's guide on indicator organisms is derived from a water monitoring curriculum developed at Ulster County Community College. There are 37 modules in this guide; each is introduced with a statement of purpose and then broken down into units of instruction. These units contain an objective, learning conditions, and a performance level.…

CRITERIA FOR LANGUAGE TEACHING ARE FORMULATED. COMPLETE LESSONS ARE DESIGNED TO COMPLEMENT LABORATORY OR TEXTBOOK LEARNING. DRILLS FOR BUILDING LANGUAGE SKILLS ARE INCLUDED. LABORATORY PROGRAMS MUST BE CAREFULLY PLANNED. TAPES PROFESSIONALLY MADE TO GO WITH TEXTBOOKS ACHIEVE MORE THAN DO REGULAR LESSON TAPES.

This paper presents the procedures, results and conclusions of a study designed to determine whether three different methodological approaches to the laboratory for a general education physical science course would lead to the same behavioral outcomes. Students enrolled in the physical science course were randomized into one of three laboratory…