Presents a description for maintaining adult forms of molluscs and protochordates in order to obtain gametes for laboratory studies of animal development. The methods also include those for culturing embryonic larvae forms in vitro. (Author/SA)

Describes three college lab exercises which can be used to demonstrate the elements and characteristics of continuous flow injection analysis. (HM)

This paper, presented at the conference on the role of the laboratory in physics education, which was held in Oxford, England in July 1978, describes the role of the laboratory in school and university physics in Honduras. (HM)

This paper, presented at the conference on the role of the laboratory in physics education which was held in Oxford, England in July 1978, discusses whether physics laboratories are essential or merely desirable for secondary schools and universities. (HM)

Through the use of science-reading kits, one teacher develops practical application of children's reading skills. Each child designs and builds appropriate materials for science learning kit on the subject of his/her choice. (SA)

Described is a multidisciplinary group project for undergraduate students in astronomy and physics. The students design and build a simple radiotelescope subject to a number of realistic constraints such as fixed cost, use of a standard communications receiver, and buying of supplementary building materials off the shelf. (BT)

Explains the unique benefits of using simulation software in place of physical experiments testing in high school science. Supplies detailed examples of students' usage. A sidebar presents vendors of simulation packages. (AEF)

The Multimedia Education Laboratory of the Chemical Engineering Department at the University of Michigan develops multimedia-based educational materials presenting difficult concepts and chemical engineering processes. Highlights include software developed for undergraduate courses; the Multimedia Encyclopedia of Chemical Engineering Equipment;…

Described is a simple circuit with which students can observe the effect of common dielectric materials in a capacitor and measure the dielectric constant of a piece of paper. Discussed are the theory, apparatus construction, and experimental procedures for this activity. (CW)

Suggestions for the design and production of power supplies and meters for use in school physics laboratories and classrooms are provided. Details of these apparatus are given including circuit diagrams. (CW)

Reports experiences during a two-year period in introducing the computer to the laboratory and students to the computer as a laboratory instrument. Describes a working philosophy, data acquisition system, and experiments. Summarizes the laboratory procedures of nine experiments, covering mechanics, heat, electromagnetism, and optics. (YP)

Describes an interface that uses semiconductor metal oxides to detect low gas concentrations. Notes the detector has long life, high stability, good reproducibility, low cost, and is able to convert the gas concentration to an electrical signal with a simple circuit. Theory, schematic, and applications are provided. (MVL)

Presents a low cost system with easily replaced electrodes for use in general chemistry. Notes the accuracy and wide applicability permit easy use in physical or quantitative chemistry experiments. Provides schematic, theory, and helpful suggestions. (MVL)

Water rockets are used to present Newton's three laws of motion to high school physics students. Described is an outdoor activity which uses four students per group. Provides a launch data sheet to record height, angle of elevation, amount of water used, and launch number. (MVL)

Suggests the use of small canopy hoods that provide flexibility of vertical and horizontal adjustment over the lab bench as a replacement for permanent hoods. Includes many safety related instances where canopy hoods should be used. (MVL)