Describes a low cost hydrometer which can be assembled by students using stock laboratory items with a total retail cost of 17 cents. Includes list of required materials (with supplies) and experimental results on the instrument's accuracy. (JM)

Long-term economic growth requires better use of research/development resources and closer interaction of academic, government, and industrial research communities. Proposed federal increase for university-based research, addressing national needs for new knowledge in fields important to industrial development/personnel training, requires research…

Evaluated and described is an innovative freshman chemistry one-semester laboratory, relating changes in the course to objectives in decreasing lab expenditures, increasing learning, increasing quality, improving attitudes, and producing materials for widespread use. Lists topics for experiments, videotape presentation, and computer simulation.…

Presents chemistry activities suitable for elementary students. Lists chemicals commonly used in elementary science, their common names, and where they may be obtained. (DS)

Presents general and specific guidelines for handling carcinogens. Additional topics include: definition of potential occupational carcinogens; classification of carcinogens; inventory requirements; signs and labels for materials and laboratories; decontamination and disposal procedures; medical surveillance for employees working with controlled…

Describes an application of solid-state memories in a laboratory course, which enables students to build electronic devices. Also introduces the fundamentals of analog-to-digital conversion and sampling theory. (CS)

Summarizes viewpoints on the use of animals in science experiments in the biology classroom, including those of teachers, education researchers, biomedical scientists, science education administrators, and animal welfare advocates. (Author/CS)

Described are different chemistry curricula that use lecture-experiments. Different components are discussed within the lecture-experiment format, such as determinism, memory, note taking, descriptive chemistry, and holistic chemistry. Also discussed are different personalities in chemistry education. (DS)

Described is a diffusion apparatus to be used in an undergraduate physical chemistry laboratory experiment to determine the diffusion coefficients of aqueous solutions of sucrose and potassium dichromate. Included is the principle of the method, apparatus design and description, and experimental procedure. (Author/DS)

Reports the results of a survey of practicing scientists, recent graduates, and undergraduates about their perceptions of undergraduate laboratory programs in biology, chemistry, and physics. Scientists and graduates regard laboratory experiences in pragmatic terms stressing the scientific process skills while undergraduates regard laboratories as…

Describes a technique for downloading digital images of a fresh human cadaver from a commercially available CD-ROM and from the Internet. The images can be annotated to illustrate specific anatomic features and display groups of images in a format that is easy to use during lectures and accessible to undergraduate students for study during and…

Presents discussions on sources, health impacts, methods of analysis as well as lengthy discussions of lead, nitrates, and atrazine as related to water pollution and the interdisciplinary nature of the modern chemistry curriculum. (DKM)

Describes a lab that introduces agarose electrophoresis techniques and basic information on proteins to middle school and high school students. Insists that, built around a scenario in which students must solve a crime, the lab has real-world applications that should spark student interest. (KHR)

Examines reading comprehension as it applies to the chemistry lab and describes techniques that promote better comprehension of lab materials. Lists four levels of reading to understand: literal, inferential, evaluative, and creative. Notes three methods to teach reading: the reference approach, mapping, and request. (MVL)