This experiment can be used as either a demonstration or a laboratory activity illustrating the principles of affinity chromatography to purify an enzyme. (BB)

The role of laboratory experience in professional education is discussed. Although laboratory experiments are often expensive and demanding on faculty time, they can offer a unique experience to the veterinary medicine student. (BH)

Demonstrations of Boyle's Law and of the relationship of gauge pressure and atmospheric pressure are presented. (BB)

Presents a laboratory experiment that was developed to acquaint physics students with field-effect transistor characteristics and circuits. Computer-drawn curves supplementing student laboratory exercises can be generated to provide more permanent, usable data than those taken from a curve tracer. (HM)

Describes a laboratory demonstration that can be used to convert an analog quantity into frequency, which can then be converted into a binary measure using either an oscilloscope or a frequency counter. (MA)

Describes how student responses to 26 bipolar adjectives describing laboratory studies are used at a New Zealand university to modify the content of laboratory experiments in physics. (MLH)

Describes a classification test that uses a sodium nitroprusside reagent to identify aliphatic and aryl amines. (MLH)

Describes the construction of an inexpensive column for gel filtration and results of experiments suitable for undergraduate biochemistry students. (MLH)

A mechanism for augmenting the relevance of instruction in laboratory animal medicine is suggested: the identification of practice-relevant content. This identification helps foster a positive attitude toward the subject and facilitates the retention of information. (LBH)

Describes laboratory techniques designed to familiarize students with meiosis and how microscopic preparations of meiosis are made. These techniques require the use of fresh or fixed flowers. Contains 18 references. (DDR)

Traces the history of the observation of the production of electric sparks and the early history of battery design. Detail is provided about laboratory experiments performed by Robert Bunsen, who spent a great deal of time developing an efficient and comparatively cheap battery. (36 references) (DDR)

Presents results of a controlled experiment comparing the conceptual mechanics learning gains as measured by the Force Concept Inventory (FCI) between two laboratory groups. One group completed cookbook labs while the other completed Interactive-Engagement (IE) labs in RealTime Physics. Suggests that laboratory activities should engage students in…

Describes an ecology curriculum primarily for elementary school students but also adaptable to junior and senior high school classes. Includes investigative and inquiry-based laboratory problems to accompany inquiry-based teaching. Connects the science learning that happens in school to students' own experiences. (SOE)

A demonstration related to current transport through a superconductor is presented. The principle of the experiment, procedures for the demonstration, and technical data are provided. (CW)

A room-temperature demonstration of a floating magnet using a high-temperature superconductor is described. The setup and operation of the apparatus are described. The technical details of the effect are discussed. (CW)