The educational design of a project option in an Open University course on evolution is described. Also described is the simulation which models the genetic and evolutionary consequences of two populations of a species of flowering plant coming together after a period of genetic isolation. (Author/JN)

Several activities focusing on the elasticity of rubber bands and chalk are described. Explanations for the observations noted are included. (JN)

Suggests that programing can bring about an understanding of several biological concepts which, because of their arithmetic implication, are often considered to be difficult. Population growth is used to illustrate the proposal, in which computing and the study of the topic are integrated. (Author/JN)

Considers the classification of organisms into five kingdoms based on evidence from molecular biology and microscopic techniques. Divides organisms into Protoctista, Monera, Fungi, Plantae, and Animalia, discussing characteristics of prokaryotes and eukaryotes as related to division of the kingdoms--prokaryotes in kingdom Monera and eukaryotes in…

Understanding chemical reactivity, chemical catalysis, and the chemistry of life processes are cited as key areas for government research funding in a National Academy of Sciences/National Research Council committee briefing to White House Office of Science and Technology Policy. Fundamental questions to be answered in each area are outlined and…

Describes a simulated laboratory research project in which the thermodynamic and kinetic aspects of ammonia synthesis are simulated on a computer. (MLH)

Discusses the advantages of using research projects in lower-level chemistry courses; presents a list of suggested projects. (MLH)

Describes the advantages and disadvantages of a college program that leads to both a degree in physics and a teacher's certificate. (MLH)

Discusses the measurement of electrons ejected from a system which is being irradiated with X-rays or ultraviolet photons, and a theoretical model for calculating core-electron ionization energies. (MLH)

Discusses the energies, structures, and efficiencies of interconversion of the various electronic states within transition metal complexes. (MLH)

Describes a Grignard reaction in a step synthesis that can be used in the laboratory to demonstrate several experimental and instrumental techniques. (MLH)

Describes an experiment that follows the progress of a chemical reaction with radiochemical tracer techniques, using the beta-emitting radioisotope iodine 131. (MLH)

Describes a student computer experiment that shows how the properties of the star, the temperature, and the opacity determine the nature of the observed spectrum of a star. (MLH)