Included is information regarding: sucrose dehydration by sulphuric acid; an example of school-industry link in studying zinc oxide production; viscous flow in inorganic silicate glass; construction of a peristaltic pump; electrolysis; carbon dioxide preparation; electrophoresis; safety in using hydrogen and sulphuric acid; and approaches to…

Included is information regarding: fabrication of light emitting diodes, their operation as semiconductors, and an experiment demonstrating electroluminescence; experimenting with Random Access Memory (RAM) circuits; demonstrating Coriolis effect; measuring the diameter of an electron beam, E.H.T. meters; launching a trolley by catapult; a "random…

The theoretical basis for the calculation of hydration numbers is developed. (BB)

Describes an experiment designed to illustrate the basic principle involved in the process of moderation of fast neutrons by water, and the monitoring of the low-energy neutron flux using indium as a probe. (GA)

Describes a simple experimental system whereby the comparative actions of long, medium, and short-acting barbiturates can be demonstrated in a relatively short period of time under optical microscopy using pollen grains as the biological test or assay system. (Author/HM)

Explains how to use magnetic cylinders on an air table to demonstrate certain atomic structure and vibrational behavior in many face-centered metals like aluminum or copper. (GA)

Describes a compact and portable apparatus for the measurement, with a high degree of precision, the value of the gravitational acceleration g. The apparatus consists of a falling mercury drop and an electronic timing circuit. (GA)

Describes an improved experiment of the thermal dehydration of copper (II) sulfate pentahydrate. The improvements described here are control of the temperature environment and a quantitative study of the decomposition reaction to a thermally stable oxide. Data will suffice to show sequential gravimetric analysis. (Author/SA)

Presented are problems related to replacement and purchasing complex laboratory instruments necessary in biological research. Increased costs of equipment and leveling of research support are acknowledged as contributors to the problem. (SA)

Describes a chemistry program offered at East Mecklenburg High School in Charlotte, North Carolina. The philosophy underlying this program and its teaching techniques are also included. (HM)

Presents an nmr spectrometer-computer interface experiment in digital acquisition of spectroscopic data, which is intended for students nearing the end of a master's degree in physical chemistry. (HM)

Simple laboratory investigations are given which expose elementary students to optical crystallography techniques. Procedures and materials are designed for sixth-grade students. (SA)

Describes how plants can be produced by cloning by using tissue culture methods to mass-produce rare native prairie plants and trying to transfer some of the genetic characteristics of native grasses into cultivated cereals. The experiment was conducted at South Dakota State University. (HM)

Models, based on Gowin's Epistomological V model, are presented which are intended to be useful in illustrating ideas to students about how knowledge is acquired and how to relate laboratory work to the concept being learned. (SA)

The laboratory experiment described here is intended to be of use to the forensic science major enrolled in a course in organic chemistry. The experiment is the use of thin-layer chromotography for qualitative analysis, specifically for the identification of drugs. (Author/SA)