Presents a science project involving the production, transportation, handling and preparation of food for human consumption. Calculations of caloric value of the food intake and the energy costs of cooking are included. (Author/SA)

A science and social studies unit developed around rosin is described. Students develop an understanding of the processing of raw material from a plant source into a commercial product and how to protect wood from weathering by preparing, testing, and evaluating varnish and shellac for their wood protective qualities. (Author/DS)

Discusses distillation of liquid mixtures with the emphasis on experimental work. A number of experiments, intended for chemistry secondary school teachers in the United Kingdom, are included. (HM)

Describes an experiment which makes use of a number of concepts from geometrical optics. The apparatus and method which is intended for students in elementary college physics classes are included. (HM)

Describes an organic chemistry experiment demonstrating the effect of temperature on reactivity as measured by reverse phase high performance liquid chromatography. (CS)

Presents an undergraduate analytical chemistry experiment that promotes an interpretation of the molecular aspects of solute partitioning, enhancing student understanding of separation science and liquid chromatography. (CS)

Described is a praparium, a completely sealed and self-contained living aquarium. Steps on how to set up the aquarium, cautions, and a list of suggested aquarium plants and fish are included. (DS)

Describes urinalysis techniques for dry weight measurement, examination of urinary calculi (stones), and determination of the presence of blood and blood pigments. Also presented are directions for preparing required reagents. (WB)

Outlines a procedure where chromatographic separation can be easily done and provides an introduction to column chromatography. (CS)

Describes the chemical reactions and compounds involved in making a cake. A protein coagulation and gas expansion laboratory activity is included in which the students bake a cake and eat it. (DS)

Presents the construction, operation, and theory of a Sargent-Welch scattering apparatus. Procedures for using the apparatus are also presented for high school teachers. (HM)

Describes a method to form on a large fixed screen the succession of the diffraction patterns on the different infinity. This method is designed to be used in a college physics course. (HM)

Describes a first-year chemistry experiment that illustrates the fundamental concepts of a photoinduced reaction. Qualitative and quantitative parts of the photoreduction of potassium ferrioxalate are detailed. (CS)

Describes an advanced level experiment in which a transition metal cluster compound, cyclopentadienylcarbonyliron tetramer, is synthesized and characterized spectroscopically. Its redox properties are then explored through cyclic voltammetry. (CS)

Describes an exercise which is currently used in a course in cell physiology at Oxford Polytechnic in England. This exercise can give students some idea of the molecular events involved in bringing about movement of chloroplasts (and other organelles) in plant cells. (HM)