Describes an experiment for determining the thermal neutron flux of the light-water nuclear reactor at the University of California, Irvine. The difficulty of the activity can be varied to match the student's level of proficiency. (SL)

Reports an undergraduate analytical chemistry experiment utilizing the high performance liquid chromatograph. (SL)

Describes an undergraduate experiment which will permit students to analyze the rotational Raman spectra of hydrogen and carbon dioxide and determine the bond distances. (SL)

Describes an experiment for determining the amount of BHA in cooking oil in an undergraduate level chemical technology program. (SL)

Describes an experiment for studying the dynamics of a soft spring. (SL)

Describes three experiments for undergraduates which illustrate associations of parasites with their host. Includes a table of parasite-induced alterations of selected host species. Instructional suggestions are also provided. (ML)

Describes a laboratory experiment which focuses on the importance of water in germination and seedling emergence. Discusses the activity's design, expected results, and possible application. Offers suggestions for extending the experiment. (ML)

Describes a simple method for purifying catalase for the study of proteins. Procedures are systematically and diagramatically presented. Also identifies polyacrylamide gel electrophoresis, kinetic studies, and apparent molecular weight determination as possible techniques to be used in studying proteins. (ML)

Presents an experiment which enables weed science students to observe first-hand the process of herbicide leaching in soils. Features of this technique which demonstrate the movement of herbicide within a column of soil are outlined. Diagrams are provided of the apparatus employed in the exercise. (ML)

Described is the construction and utilization of a Dewar assembly for measuring the heat of vaporization of liquid nitrogen. The device is fabricated from a thermos bottle replacement filler. (SL)

Describes experiments that can be carried out by freshmen in general science courses. All experiments are prepared with inexpensive equipment and materials. Quantitative data are analyzed intuitively using graphical representations. (JP)

Discusses the importance of children developing personal associations with animals, and suggests that it is the responsibility of schools to teach students how to properly care for pets. With particular reference to Canadian experiences, criticizes the widespread neglect of pets and misuse of animals in school laboratories and science fairs. (JR)

Describes a laboratory method suitable for senior high school classes for investigating possible mechanisms of catalytic function. The Harcourt-Essen reaction is used to demonstrate a catalytic process that can be investigated quantitatively by standard kinetic methods. (JR)

Suggests that the Friedel-Crafts reaction, used for synthesizing a wide range of aromatic compounds, is an ideal vehicle for extended senior high school project work in chemistry. Provides a theoretical discussion of the reaction, suggests a number of suitable investigations, and outlines the experimental details. (JR)