The Japanese morning glory, a short-day plant, is an excellent specimen for studying photoperiodism. This article gives ideas for investigations including the effects of hormones, light quality, and temperature. Preparation of the seed is also discussed. (BB)

Describes an exercise which familiarizes students with organic chemistry terms and introduces preferential degradation reactions. (CP)

A colorimetric procedure for the determination of serum iron for use in freshmen and sophomore level quantitative analysis laboratories is described. (CP)

Describes a blood coagulation test developed by two high school biology students. Although the test lacks some precision, results indicate that the technique is comparable to standard methods used in laboratories. (MA)

Describes an experiment for general chemistry students for analyzing bathroom cleansers. (SL)

Describes a laboratory exercise illustrating the use of the Cannizzaro reaction in synthesis, the production of commercial resin, and the importance of natural products in industrial chemistry. (SL)

Describes an experiment utilizing the Solvay synthesis of sodium hydrogen carbonate to teach students to organize and plan a synthesis procedure. (SL)

Short reports contributed on a variety of biology topics are presented. (CP)

Short reports contributed on a variety of topics in chemistry are presented. (CP)

A variety of topics in physics are covered by these contributed teaching and laboratory equipment suggestions. (CP)

Reviews experiments performed in a mobile spectroscopy laboratory. (SL)

Associates science teacher "bad days" with the inability to answer the questions asked by students. Proposes that publications focus on providing the answers to recurring questions experienced by science teachers. (CP)

Three studies are described in which choice reaction time (RT) was related to such psychometric ability measures as verbal comprehension, numerical reasoning, hidden figures, and progressive matrices tests. Fairly consistent negative correlations were found between these tests and choice RT when high school samples were used. (Author/CTM)

Describes benefits and techniques for utilizing Mormoniella vitripennis (jewel wasps) in teaching biology. Feeding, courtship, egg-laying, and insect behavior investigations are presented. (SL)

Provides a variety of science activities structured around the germination and growth of oak trees from acorns. (CP)