Describes an experiment involving the preparation of copper iodide that gives stoichiometric results. Materials needed and procedures are discussed along with ideas on different ways to analyze the data. Pertinent chemical equations are presented. (BC)

Background information, procedures used, and typical results obtained are provided for an experiment in which gas chromatography is used to prove the application of quantum symmetry restrictions in homonuclear diatomic molecules. Comparisons between experimental results and theoretical computed values show good agreement, within one to two…

Students complete five experimental projects at the end of a senior-level biochemistry course which involves the isolation and characterization of myosin and its water-soluble subfragments. Procedures used and results obtained are provided for such projects as viscosity and ATPase measurements and gel electrophoresis experiments. (JN)

Describes procedures (recommended for both secondary and college levels) to study mitosis, Giemsa C-banding, reproductive phenomena (including alternation of generations), and phototropism in mosses and liverworts. (JN)

Describes a study of a university-sponsored English as a second language program from two aspects: (1) foreign students at all levels using commercial ESL audiotape programs in an independent electronic laboratory, and (2) foreign students at all levels using laboratory-specific audiotape programs in a controlled electronic laboratory. (Author/SED)

Describes a scheme in which students are arbitrarily paired and presented with a menu of 11 experiments (as well as a figure illustrating their relationships). Each student performs seven experiments in triplicate during the 11 3-hour laboratory periods. Goals of this course are included. (JN)

Describes a simple and inexpensive interface to be used for data acquisition and control of some experiments in an undergraduate physics laboratory. Two specific applications are presented. Seven references are listed. (Author/MBR)

Presents three ideas to help hold costs down in purchasing and using science equipment. These include (1) use of pencils and other graphite rods as sensors in potentiometric titrations, (2) rubber bulb modification for pipetting, and (3) a heater for a glassware bath. (JM)

Provides background material and laboratory procedures for an activity which requires students to compare (in quantitative terms) fossils from 10 localities and to objectively define provinces, regions, and realms. These paleobiogeographic relationships are then used to reconstruct the drift histories of the three continents on which the 10…

Computer-integrated manufacturing (CIM) involves use of data processing technology as the vehicle for full integration of the total manufacturing process. A prototype research and educational facility for CIM developed with industrial sponsorship at Princeton University is described. (JN)

Describes an experiment which illustrates simple synthetic techniques, redox principles in synthesis reactions, interpretation of visible spectra using Orgel diagrams, and the spectrochemical series. The experiment is suitable for the advanced undergraduate inorganic chemistry laboratory. (JN)

Describes test-tube organic chemistry procedures (using comparatively safe reagents) for the beginning student. These procedures are used to: examine differences between saturated and unsaturated hydrocarbons; compare structural isomers; and compare organic and inorganic acids and bases. (DH)

Background information and procedures are provided for a second part to the dichromate volcano demonstration. The green ash produced during the demonstration is reduced to metal using aluminothermy (Goldschmide process). Also describes suitable light sources and spectroscopes for student observation of emission spectra in lecture halls. (JN)

Explains a projectile motion experiment involving a bow and arrow. Procedures to measure "muzzle" velocity, bow elastic potential energy, range, flight time, wind resistance, and masses are considered. (DH)

Describes creative applications of instructional technology using computer-based telecommunication in Hawaii. Includes description of electronic field trips and global studies that enhance international understandings. (MD)