Reports on a study which investigated the effects of having students analyze circuits in the laboratory compared with troubleshooting from homework problems. Results indicated that laboratory experiences provide a richer learning experience than lecture and homework alone. (TW)

Discusses the value of electrophoresis in the fields of protein chemistry and biochemistry. Describes how to build an inexpensive electrophoresis setup for use in either research or teaching activities. Details the construction of both the separating device and the power supply. (TW)

Describes the construction of a chemistry laboratory. Also discusses the place of science in school technology teaching, a study of students' understanding of simple quantitative relationships in chemistry, and the objectives of school physics. (JN)

Some of the issues surrounding the indoor air quality (IAQ) problems presented by science labs are discussed. Described are possible contaminants in labs, such as chemicals and biological organisms, and ways to lessen accidents arising from these sources are suggested. Some of the factors contributing to comfort, such as temperature levels, are…

This study investigated the use of a hands-on laboratory program as a means of improving attitude toward science and increasing achievement levels in science knowledge among students in a ninth grade physical science course. Using a posttest-only control group design, a curriculum referenced objective final examination was used to measure student…

This laboratory manual introduces the idea of Green Chemistry, which is the design of chemical products and processes that reduce or eliminate the use and generation of hazardous substances. Instructional samples are included to help teachers integrate green chemistry into the college chemistry curriculum. Each laboratory includes: (1) a…

It is very important to provide a safe learning environment for students while engaging them in investigative and observational hands-on science activities. This teacher's guide provides information on safety rules and regulations in a narrative style while discussing both self-contained classroom teachers and science specialists in the elementary…

The University of Georgia (UGA) biosafety program was initiated in response to requirements for recombinant DNA experiments rather than laboratory-acquired infections. This and other environmental safety programs at UGA are described, considering three of the four recognized levels of biocontainment. A fire extinguisher inspection computer program…

Characterizes a number of the bench-type chemical laboratory hoods. Reports results of a study that determined the levels of protection each type provides, exploring variables such as laboratory air supply systems, face velocity, work practices, personnel movement, and the effect of equipment location in the hood. (CS)

Described is an experiment designed to provide an experimental basis for a unifying point of view (utilizing theoretical framework and chemistry laboratory experiments) for physical chemistry students. Three experiments are described: phase equilibrium, chemical equilibrium, and a test of the third law of thermodynamics. (Author/DS)

Methods for organizing and storing chemicals in teaching laboratories and preparation rooms are given, emphasizing storing and handling of flammable liquids. Two appendices are given: (1) flash points and autoignition temperatures of common flammable liquids; (2) content of a kit, with instructions, for cleaning up spills of flammable liquids. (JN)

Describes a new apparatus for Drosophila habitats which has the advantage of leaving pupae and adult flies undisturbed while being able to renew or move the media and larvae at will. (CS)

The laboratory curriculum of an introductory physical geology course which emphasizes a peer-learning approach is discussed. (Author/SA)

Suggestions are given for safety precautions in the secondary school science laboratory. Emphasis is placed on fire safety and identification of particularly hazardous situations. (SA)

Describes the Crime Lab Project, which takes an economical, hands-on, interdisciplinary approach to studying the career of forensics in the middle or high school classroom. Includes step-by-step student requirements for the investigative procedure, a sample evidence request form, and an assessment rubric. (KHR)