Indicates the difficulties in performing a high quality lab, especially in integrated courses, because of limited supplies and expenses. Introduces a program in which a high school collaborates with the community. Makes recommendations for the implementation of this type of program to other high schools. (YDS)

Investigates the reasons for data fabrication among undergraduate and graduate students. Presents several examples of getting misled by the candle and tumbler demonstration. Concludes that presented facts, concepts, or principles increase the incidence of data cooking. (YDS)

Presents an experiment in which students use laboratory data to calculate the interphase mass transfer coefficient for a fluid passed over a sphere and obtain correlations for solid-gas mass transfer. Students develop a realistic mathematical model to describe the sublimation process. (DDR)

Recommends the use of a model of DNA made out of Velcro to help students visualize the steps of DNA replication. Includes a materials list, construction directions, and details of the demonstration using the model parts. (DDR)

Discusses Knob's solution, which was considered the ideal plant growth solution in 1865, and recommends eliminating Knob's solution from active teaching. Describes solution culture basics including nutrient solutions, containers and aeration, and plants and light. (Contains 12 references.) (YDS)

Introduces a chemistry course developed at Northeastern University and discusses the improvements to increase the quality of education offered to graduate students. (Contains 20 references.) (YDS)

Introduces an undergraduate level problem-based analytical chemistry laboratory course integrated with an environmental law course. Aims to develop an understanding among students on the use of environmental indicators for environmental evaluation. (Contains 30 references.) (YDS)

Describes an unusual course at the University of California, Los Angeles which includes DNA sequencing experiences and exploration of the social, economic, and ethical issues resulting from advances in biotechnology. (EV)

Presents several variations on a demonstration in which alcohol vapors are combusted in large small-necked bottles, causing a blue flame to shoot from the bottle's mouth. Describes variations with different pure alcohols, temperature, alcohol/water solution concentration, oxygen concentration, type of container, and the addition of salt for color.…

Provides examples of four university science buildings whose design fosters interdisciplinary interaction among students coupled with lab flexibility. Design concepts, innovations, and building layouts are examined. (GR)

Discussion of integrating technology into elementary school classrooms focuses on teacher training that is based on a three-year plan developed at an elementary school in Marathon, New York. Describes the role of a technology teacher who facilitates technology integration by running the computer lab, offering workshops, and developing inservice…

Presents a science unit in which students design and test a sample of concrete and later redesign it to improve the strength of their sample under compression. (YDS)

Describes a project that applies problem based inquiry learning units to an introductory chemistry laboratory curriculum. Uses web technologies to support instruction. (Contains 25 references.) (YDS)

Introduces a laboratory science course addressing scientific literacy. Includes three interrelated student projects for the laboratory section of the course. (Contains 27 references.) (YDS)

Discusses an effort to design a heating, ventilation, and air conditioning system flexible enough to accommodate an easy conversion of classrooms to laboratories and dry labs to wet labs. The design's energy efficiency and operations and maintenance are examined. (GR)