A method of obtaining a crude mitochondrial extract from sheep and beef heart is described. The respiratory substrates succinate and malate are examined as well as the inhibitory effect of malonate. An interface with a microcomputer for plotting colorimeter results is discussed. (Author/CW)

Described is a course designed to better prepare students for employment in chemical industries. A course schedule for this interim course and a list of sources of speakers and speaker credentials is provided. (CW)

Described is the manufacture of a superconductor from a commercially available kit using equipment usually available in schools or easily obtainable. The construction is described in detail including equipment, materials, safety procedures, tolerances, and manufacture. (Author/CW)

Described are demonstrations designed to reveal the important "nonsolvent" properties of water through its interaction with a toy called "Magic Sand" and other synthetic silica derivatives, especially those bonded with organic moities. The procedures for seven demonstrations along with a discussion of the effects are presented. (CW)

Presented are laboratory methods which allow the demonstration and determination of the diffusion coefficients of compounds ranging in size from water to small proteins. Included are the procedures involving the use of a spectrometer, UV cell, triterated agar, and oxygen diffusion. Results including quantification are described. (CW)

The synthesis of 4-acetylbiphenyl on a semimicroscale for use as an organic laboratory exercise is described. Materials, experimental procedures, and results are discussed. Sample NMR spectra used in the resulting analysis are provided. (CW)

Four questions related to rain concerning aerodynamic drag force, pressure from the impact of raindrops, impact of wind on the pressure, and stopping force extended on the car by the water are proposed. (YP)

Introduces optical experiments and observations for an airplane passenger including scratches on a window, scattering of light, and reflection images. Provides several diagrams. (YP)

Introduces several one- and two-mode vibrating systems for demonstrations. Provides some recommendations for designing the corridor apparatus. (YP)

Materials and methods for studying the functioning and responses of stomatal guard cells are described. (PB)

Presented is an experiment in which students recover almost 90 percent of the original lead chloride thus saving on costs of chemicals and disposal. Included are experimental procedures and a discussion of typical results. (CW)

Described is an activity which demonstrates an organic-based reprographic method that is used extensively for the duplication of microfilm and engineering drawings. Discussed are the chemistry of the process and how to demonstrate the process for students. (CW)

Described is an experiment involving the synthesis and spectral studies of cobalt complexes that not only give general chemistry students an introduction to inorganic synthesis but allows them to conduct a systematic study on the effect of different ligands on absorption spectra. Background information, procedures, and experimental results are…

Reviewed are the basic concepts of experimental design, analysis of data, and optimization. Discussed are two-level factorial designs; fractional factorial designs and blocking, additive, linear, and quadratic models; quadratic and composite designs; and designing experiments in design. (CW)

An open format in which students keep log books to help them become more active in the learning process is discussed. Included are creative thought and language, visualization, and using writing to learn how to learn. Examples of student writing are provided. (CW)