Reports on a study into the effectiveness of implementing an interactive videodisc science lesson on titration into a high school science program. Describes the titration lesson and the equipment used in two chemistry classes. Results were generated from achievement and attitude instruments, along with observational data. (TW)

Describes an approach to teaching population genetics and evolution and some of the ways models can be used to enhance understanding of the processes being studied. Discusses the instructional plan, and the use of models including utility programs and analysis with models. Provided are a basic program and sample program outputs. (CW)

Discusses why creation science could be discussed in a high school biology class. Examines the debate that exists between scientific creationists, biblical literalists, and traditional scientists regarding the teaching of creation science in schools. Describes how discussion of this debate could help students understand the nature of science. (CW)

Describes a field trip activity to measure changes in elevation across the dunes of a barrier beach, measure wind velocity along the transect line, and observe the distribution of ground cover in the study area. Discusses equipment, materials, procedures and follow-up activities for each study. (CW)

Lists five experiments or demonstrations involving hypodermic syringes. The titles of experiments are Boyle's Law, Charles' Law, Atmospheric Pressure, Expansion of Gases, and Boiling at Reduced Pressure. Provides a list of materials, the typical data, and graphs where appropriate. (YP)

Presented is the use of a microprocessor for mechanics experiments. Described are the experimental set-ups, experimental method, and conclusions. Includes several diagrams and pictures. (YP)

Outlines the simple exercise of measuring the length of an object as a concrete paradigm of the entire process of making chemical measurements and treating the resulting data. Discusses the procedure, significant figures, measurement error, spurious data, rejection of results, precision and accuracy, and student responses. (TW)

Discusses some of the attributes of effective tutorial software programs. Describes four science programs that focus on the physical and earth sciences, and highlights some of their features that are proposed as features of high-quality educational software. (TW)

Describes some simple computer programs designed to simulate the molecular dynamics of two-dimensional systems with a Lennard-Jones interaction potential. Discusses the use of the software in introductory physics courses at the high school and college level. (TW)

Uses a demonstration done by John Tyndall in 1856 to show that geological processes can produce striking changes, such as slate formation, by slow and incremental means. Explains how Tyndall's demonstration can be replicated in the classroom using paraffin or beeswax to produce the layering change similar to slate. (CW)

Discusses the causes, sources, and problems associated with acid deposition in the Pacific Northwest. Includes a learning activity about acid rain, "Deadly Skies," which was adapted from the Project WILD Aquatic Supplement. (TW)

Describes an experiment that is to be performed midway in the first semester of an undergraduate organic chemistry laboratory coinciding with the students' introduction to cis-trans isomerism in the study of alkenes. Discusses the apparatus, materials, experimental procedure, historical significance, and results. (CW)

Presents a response to recent calls for reform in science education. Argues for increased "hands-on" experience, both in the laboratory and in the environment. Suggests the need for producing more "enthusiastic" science teachers. (TW)

Provides information about saltwater wetlands. Contains seven learning activities which deal with "making" a mud snail, plants and animals of mangroves, and the effects of tides on salt marshes. Included are reproducible handouts and worksheets for several of the activities. (TW)

Describes an optional course in "computational physics" offered at the University of Birmingham. Includes an introduction to numerical methods and presents exercises involving fast-Fourier transforms, non-linear least-squares, Monte Carlo methods, and the three-body problem. Recommends adding laboratory work into the course in the…