Investigates secondary school students' concepts of isotopes and allotropes and how the concepts are linked to the Periodic Table of Elements (PTE). Questions senior high school students with multiple choice items and interviews. Shows that students actively tried to make sense of what they had experienced. (KHR)

Presents a puzzle using chemical element clues leading to animal names. (YDS)

Presents a 30-word wordsearch puzzle on nucleotide sequences used in proteins in terrestrial organisms. (YDS)

Describes the "Name Game" in which students find out hidden information by asking questions of other participating students. Can be used for a variety of topics and test reviews. (YDS)

Drawing on studies of active learning methods in a chemistry course, presents two case studies exploring the change processes and outcomes of the faculty member who designed the course and the one who adapted it. Explores problems experienced during adaptation. Concludes with recommendations: faculty should choose innovations of genuine interest…

Integrates concept mapping into the chemistry laboratory and requires students to construct a concept map for each experiment. Reports a decrease in student questions concerning set up and procedure. Recommends using computer software such as Chem Sketch 5.0 which is free and available from the Internet. (Contains 15 references.) (YDS)

Describes visual experiments that illustrate some basic concepts in chemistry and their principles. (KHR)

Presents examples of a space program and the media based on it for teaching chemistry. Discusses how to use videotapes during class to facilitate class discussion of chemistry topics. (KHR)

Reported are statistics for research and development in chemistry. Provided are (1) an overview; (2) breakdowns of statistics regarding the federal government, industry, and universities and colleges in the United States; and (3) international research and development. Data are presented in graphs and tables. (CW)

Some of the important modern developments of thin-layer chromatography are introduced. Discussed are the theory and instrumentation of thin-layer chromatography including multidimensional and multimodal techniques. Lists 53 references. (CW)

Presents two short microcomputer programs which illustrate features of nonlinear dynamics, including steady states, periodic oscillations, period doubling, and chaos. Logistic maps are explained, inclusion in undergraduate chemistry and physics courses to teach nonlinear equations is discussed, and applications in social and biological sciences…

Reports two surveys conducted in 1983 and 1986 to determine physical chemistry textbooks being used. The selection processes and results are discussed. Provides six tables showing the results. (YP)

The illustration of molecular structures by means of stereo pairs (to project three-dimensional views of two-dimensional representations) has been common practice in periodicals, slide presentations, and books. Describes the stereo triptych and multiply rotated stereo views with diagrams and discusses the use of them. (YP)

Described is an experiment which illustrates pseudo-first-order kinetics in the fading of a common indicator in an alkaline solution. Included are background information, details of materials used, laboratory procedures, and sample results. (CW)

Describes the historic development of the periodic table from the four-element theory to the Lavoisier's table. Presents a table listing the old and new names of chemicals and the Lavoisier's table of elements. Lists two references. (YP)