This freshman chemistry lab relates stoichiometric problems to real situations. It requires students to measure the Fe impurity in reagent grade calcium chloride. (BB)

This experiment provides an excellent practical application of computer-controlled spectrometers. (BB)

Explains a laboratory exercise where 2-methylpyrazinepentacyanoiron (II) is synthesized by thermal and photochemical pathways. (GA)

Presents an experiment in which students prepare salt-water taffy, and concrete props for teaching weak acids and bases. (SL)

Provides an overview of an experiment on reaction kinetics of the anthracene-hydrogen system. Includes a description of the laboratory equipment, procedures, and data analysis requirements. Points out the advantages of the recommended technique. (ML)

Contends that demonstration lecturing is a valuable science teaching approach. Highlights the benefits of this technique and identifies sources of information for teachers. Provides a listing of popular science lectures suitable for chemistry classes. Describes in detail the "Major of Chemistry" demonstration. (ML)

Describes a method for performing a thermodynamic "ice bomb" demonstration which is faster, simpler, and cheaper than commercially available demonstration devices. (SL)

Describes a chemistry experiment appropriate for the day before Christmas vacation. Students prepare candy canes by following a recipe written in chemical terms. This illustrates that food is composed of chemicals and that the processes involved in cooking are chemical and physical changes. (JR)

Describes a number of activities and experiments designed to add interest and increase understanding in the secondary school physics laboratory. (JR)

The first part of a two-part article describes an experimental approach that can be used in teaching the concept of saturated vapour pressure. This leads to a discussion of refrigeration cycles in the second part of the article. (JR)

Describes an elementary school science activity in which students conduct experiments to verify their hypotheses relating to the effect of salt and other chemicals on the melting point on ice. (JR)

Describes an experiment, conducted by sixth-grade students, with mice that demonstrates the importance of a balanced diet. (JR)