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Hanson, Allen L. – Journal of Chemical Education, 1981
Describes how a sulfate-iodide "clock reaction" experiment can be used to emphasize the importance of observations and hypotheses in revealing cause-effect relationships. Investigative steps, theory, experimental principle, procedure, and the experiment report are discussed. (CS)
Descriptors: Chemistry, College Science, Higher Education, Laboratory Procedures
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Tellinghuisen, Joel – Journal of Chemical Education, 1981
Describes a companion experiment to the experimental study of the di-iodide visible absorption spectrum. Experimental details, interpretation, and data analysis are provided for an analysis of the di-iodide fluorescence excited by a visible laser, using a Raman instrument. (CS)
Descriptors: Chemistry, College Science, Higher Education, Laboratory Procedures
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Adams, J. M.; Evans, S. – Education in Chemistry, 1980
Describes a student project in analytical chemistry using sheet silicates. Provides specific information regarding the use of phlogopite in an experiment to analyze samples for silicon, aluminum, magnesium, iron, potassium, and fluoride. (CS)
Descriptors: Chemical Analysis, Chemistry, College Science, Higher Education
Vella-Zarb, Thomas A. – Chem 13 News, 1981
Describes urinalysis techniques for dry weight measurement, examination of urinary calculi (stones), and determination of the presence of blood and blood pigments. Also presented are directions for preparing required reagents. (WB)
Descriptors: Chemical Analysis, College Science, Laboratory Procedures, Medical Education
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Rubinson, Judith Faye; Rubinson, Kenneth A. – Journal of Chemical Education, 1980
Outlines a procedure where chromatographic separation can be easily done and provides an introduction to column chromatography. (CS)
Descriptors: Chemistry, Chromatography, College Science, Higher Education
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Belliveau, James F.; And Others – Journal of Chemical Education, 1981
Describes an undergraduate laboratory experiment using viscosity to follow the progress of the contractile process in muscles. This simple, short experiment illustrates the action of ATP as the source of energy in the contractile process and the catalytic effect of calcium ions as a control in the energy producing process. (CS)
Descriptors: Biochemistry, Biology, Chemistry, College Science
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Ander, Paul; And Others – Journal of Chemical Education, 1980
Describes a physical chemistry experiment that introduces undergraduate students to the entities of polyelectrolytes. (CS)
Descriptors: Chemistry, College Science, Higher Education, Instructional Materials
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Papastathopoulos, D. S.; Karayannis, M. I. – Journal of Chemical Education, 1980
Presents a chemical instrumentation laboratory experiment that introduces the methodology of the fabrication and evaluation of an ion-selective electrode. (CS)
Descriptors: Chemistry, College Science, Higher Education, Instructional Materials
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Darcy, Raphael – Journal of Chemical Education, 1980
Presents methods by which undergraduate students gain practice in ESR spectroscopy. (CS)
Descriptors: Chemistry, College Science, Higher Education, Instructional Materials
Sernka, Thomas J. – Physiologist, 1981
Outlines the objectives, materials, and procedures in performing a student laboratory experiment that demonstrates sodium transport in frog skin. (CS)
Descriptors: Biological Sciences, College Science, Higher Education, Instructional Materials
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Gilbert, George L., Ed.; And Others – Journal of Chemical Education, 1980
Presents three different procedures in which reagents are added in a specified order to a large beaker containing an aqueous solution of nickel sulfate. Complex ions of nickel (II) are prepared by using aqueous solutions of ammonia, ethylenediamine, dimethylglyoxime, and cyanide ion. (CS)
Descriptors: Chemical Equilibrium, Chemical Reactions, Chemistry, College Science
Lulashnyk, Lorne; Boonov, Janet – 1982
Since the major causes of accidents are carelessness and a negative or apathetic attitude towards safety, this guide was developed to facilitate safe, stimulating science laboratory activities by providing both general and specific safety information presented in 12 sections. Subject areas considered in these sections include: 1)…
Descriptors: Accident Prevention, Biology, Chemistry, Foreign Countries
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School Science Review, 1981
Outlines a variety of laboratory procedures, techniques, and materials including construction of a survey frame for field biology, a simple tidal system, isolation and applications of plant protoplasts, tropisms, teaching lung structure, and a key to statistical methods for biologists. (DS)
Descriptors: Biology, Botany, College Science, Higher Education
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School Science Review, 1981
Outlines several laboratory procedures and demonstrations including electric fields using sawdust, experiments with capacitors, particle spacing in a vapor and a liquid, metrology, momentum, Moire patterns and interference fringes, equipping for practical electronics, and using programmable calculators for rapid plotting of graphs. (DS)
Descriptors: College Science, Demonstrations (Educational), Higher Education, Laboratory Procedures
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School Science Review, 1981
Outlines a variety of laboratory procedures, discussions, and demonstrations including polarizing power and chemical properties of copper and zinc, preparation of boron coordination complex, demonstration of amino-acid synthesis in the primordial environment, classification and reactions of carbohydrates, and four others. (DS)
Descriptors: Atomic Structure, Chemical Reactions, Chemistry, College Science
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