Reports on an FL teaching experiment in grades 5 and 6 (gymnasium), using "La France en direct 1" (Hachette). Concludes that the text can be used with younger beginners, but is less suited for orientation classes because it is not amenable to flexibility of method. (Text is in German.) (IFS/WGA)

Describes an undergraduate atomic absorption experiment in which the iron and manganese concentrations in dry cat food are determined. (MLH)

Describes an organic chemistry experiment that illustrates dimerization, gas chromatography analysis and separation, and the thermodynamic basis for Markovnikov's rule. (MLH)

Suggests the use of a colorimeter in which heat produced is related to the amperage and voltage measured. In relating the quantities, a definition for voltage can be obtained. (CP)

Describes an inexpensive apparatus used to study the kinetics of fast reactions. Suggests an appropriate reaction for study, and laboratory techniques. (MLH)

Describes ion-exchange methods for the qualitative determination of iron (III), chromium (III), aluminum (III), and manganese (III) and (IV) in the presence of phosphates. (MLH)

Suggests that the anatomy of a green pea be studied as the culminating laboratory activity of a botany unit in a biology course. (LS)

The properties of four different tests of the treatment effect in experiments using linguistic materials are examined. (Author/RM)

Provides a solution to the Blackwood pendulum experiment by the use of conservation of linear momentum and conservation of energy of translational motion. (CP)

A look at how the computer was used to help teachers in Israel deal with students' individual learning problems. (HB)

Describes how to assemble a respirometer from common laboratory materials for quantitative measurements of gas production. (LS)

Gives basic instructions for rearing several readily available insect species particularly well suited to use in secondary, and even elementary, school classrooms and laboratories. (LS)

Includes description of a light meter, photometer, fluid flow apparatus, and acoustic grating. (RH)