Includes articles from the eight Australian states discussing trends in student enrollment in secondary science courses. (SL)

Described is a physics experiment which investigates the reactions occurring when a hot dog is fried or broiled. (SL)

Presented is the third part of a three part report describing the contributions of major committee reports to secondary teaching of chemistry during the period 1893-1975. This third part covers the period 1947-1975, and includes a brief summary of the entire three part series. (SL)

Suggests a study of plant dyes as a way of stimulating student interest and enthusiasm; provides an example of a student report on this subject. (GS)

Explains the separation of the constituents of mixtures on one piece of chromatography paper. The example presented involves a vitamin C tablet, a disprin tablet, and a glucose tablet. Outlined are two methods for separating the constituents. (GS)

Describes the step by step construction of a tissue paper hot air balloon. (GS)

Lists a model of the dimensions of scientific literacy. Explains the characteristics of the scientifically literate person. Suggests ways that the dimensions can be used for program improvement. (GS)

This teacher's edition of "A Manual of Experiments in Elementary Science" includes full directions and explanations regarding all manipulation, answers to all the questions in the "Student's Manual," diagrams, and additional hints and suggestions. The work covers elementary science experiment outlines adapted for use with…

Discusses the results of a study which indicate that teachers' grading practices affect enrollment in science subjects. The study suggests that the elimination of disparities between grading in the sciences (especially physics and chemistry) and in other subjects will often yield substantial gains in science enrollment. (JR)

Presents some organized ideas in thermodynamics which are suitable for use with high school (GCE A level or ONC) students. Emphases are placed upon macroscopic observations and intimate connection of the modern definition of temperature with the concept of ideal gas. (CC)

Reports the results of research designed to compare the performance of two groups of high school seniors on an attitude scale towards science. One group followed the Nuffield A-Level Biology course, while the second group used other A-Level Biology courses. (JR)

Presents a brief biography of Sir Isaac Newton, lists contemporary scientists and scientific developments and discusses Newton's optical research and conceptual position concerning the nature of light. (JR)

Describes the balanced curriculum proposed by the Schools Council, activities taken by the Committee of Independent Learning in Science, and suggestions for material development made in an A-level physics workshop. Indicates that the general rather than specific objectives should be stressed to broaden the scope of physics teaching. (CC)

Presents data on aircraft take off and landing, including measurements of turning speeds, triangle of velocities method, fuel consumption, air pressure differences, air turbulence, maintenance inspection, and airborne radar. Indicates the materials can serve as relevant physics examples in teaching sixth and seventh form pupils. (CC)

Discusses the advantages of implementing student projects at the secondary level, including a description of possible pupils' gains in project work. Included is a summary of procedures necessary for a teacher to prepare for projects. (CC)