States that if photochemical reactions can be followed spectrophotometrically, reactivities can be estimated by evaluating data from only one curve. Studies such a system using computerized evaluation and simulation. Uses chlorocuprate(II) complexes in acetonitrile solutions for the model systems. (MVL)

Presents a practical and attractive alternative to the sand bath used in the microscale procedures developed by Mayo, Pike, and Butcher. Urges the organic chemistry teaching community to continue towards complete conversion to microscale techniques. Presents the use of aluminum devices in the microlaboratory. (MVL)

Presents relevant statistics accumulated in a fall organic laboratory course. Discusses laboratory equipment setup to lower the amount of waste. Notes decreased solid wastes were produced compared to the previous semester. (MVL)

Describes the titration of a weak base with a strong acid and subsequent treatment of experimental data using commercially available software. Provides a BASIC program for determining first and second derivatives of data input. Lists 6 references. (YP)

Examines two computer interfaced lab experiments: 1) discusses the automation of a Perkin Elmer 337 infrared spectrophotometer noting the mechanical and electronic changes needed; 2) uses the Gouy method and Lotus Measure software to automate magnetic susceptibility determinations. Methodology is described. (MVL)

Examined is the use of the microcomputer as a tutor, for simulations of experiments, and to provide graphic interpretations of abstract concepts in the college biology setting. Discussed are computer enhanced courses being used, the software library, and the computer laboratory facility. Lists reasons for adoption of computer enhanced format. (MVL)

Reports on the teaching of recombinant DNA technology in high school biology courses. Explains reactions of the public, students, and colleagues to the molecular genetics unit. Indicates equipment, curricular materials, training, workshops, and availability. (RT)

Considers three common cases of localized corrosion of metals: pitting, crevice, and stress corrosion. Provides experimental methods for studying all three methods. Includes a discussion of expected results. (ML)

Describes an experimental procedure for determining trihalomethanes (THMs) in liquids by gas chromatography. Provides recommendations for reactants and supplies to obtain acceptable results. Discusses the analysis of water from various sources: pools, lakes, and drinking water; compares these to three cola drinks. (ML)

Describes a number of student-focused laboratory exercises that are inexpensive, yet show the scientific character of archaeology. Describes the environmental laboratory exercise which includes the following analysis topics: (1) pollen; (2) earth core; (3) microfaunal; and (4) microwear. Describes the ceramic laboratory which involves…

Discusses possibilities for improving undergraduate-level general-education biology courses, particularly through the development of interesting and focused laboratory presentations. Advocates problem-based learning and improving the communication skills of laboratory teaching assistants. (Author/WRM)

Describes two science activities concerning water density and shares an idea for combining these activities into a third, completely new activity. Demonstrates the joy of rekindling the spirit of scientific thinking in a typical classroom. (PVD)

Describes a partnership between Meadowgate School for students with special needs and Isle College in Wisbech, UK. Meadowgate School provides work experience placements for Isle College students, and the College provides classes for the school's special needs students. Outlines an initiative to provide science classes. (WRM)

Summarizes several articles on safety in the science laboratory, an article on the science and history of chocolate, and an article on teaching nuclear physics from an historical perspective. (WRM)

Current reform documents place a strong emphasis on students' understandings of the nature of science (NOS). Interestingly, the importance of this educational outcome is not new and has been agreed upon as important by most scientists and science educators for the past 100 years. Despite numerous attempts, including the major curricular reform…