Details construction of an inexpensive electronic auditory device in which the resistance in parallel with the device is inversely proportional to the frequency of sound produced. (CP)

Provides abstracts and materials requirements for 20 chromatography projects. Experiments range in complexity; some require synthesis steps, apparatus construction, or special preparation techniques. (MLH)

Feeling that projects in chemistry could be used effectively to enhance appreciation of chemistry, a project-based course for the first-year sixth formers was developed in 1973 and because of its success another was organized. Projects from both courses are described. (EB)

An experiment is described in which undergraduate students can optimize the relative yield of sec-butylbenzene by varying molar ratio and temperature. (Author/SA)

Described are five physics activities including two superconductor projects, synchronizing video camera movements, electrical analysis of a bicycle, and apparatus for the measurement of thermal conductivity. (YP)

Describes an advanced NMR project that can be done with a 60-MHz continuous-wave proton spectrometer. Points out the main purposes are to give students experience in second-order NMR analysis, the simplification of spectra by raising the frequency, and the effect of non-hydrogen nuclei on proton resonances. (MVL)

Presents a method for teaching high school students about evolution at the genus level as well as at higher taxons. Activities for a laboratory project and laboratory techniques are described. (SA)

Discussed are facts about tort liability in science education and strategies that can be used to avoid liability. Variables such as maturity, size, age, mental capacity of students, and the nature of the activities are addressed. Included are four cases in which teachers were held liable for accidents. (KR)

The Prime Minister's Committee on Natural Science in Education in Great Britain reported in 1918 that "...in many schools more time is spent in laboratory work than the results obtained can justify." Seventy years later this conclusion can often still be drawn. This is particularly a problem in open distance education where laboratory practicals,…

Explores the selection, source, funding, time constraints, and community support involved in developing carefully planned and executed science projects. Lists 21 kinetics experiments noting the instrumentation needed and the original references. (MVL)

Discusses the development of concentration and organizational skills, patience, self-discipline, attention to detail, and appreciation for error analysis through an expanded titration project. Describes the various activities in the extended project and the materials and instructional support needed. Stresses the advantage to students in their…

Science projects which can be used by high school students who have minimal experience with computers or electronics are presented in this book on laboratory interfacing. These laboratory interfacing projects include either the connecting of measuring instruments directly to a computer or using a computer to control external devices. All of the 14…