Provides information on nutritional caloric value determination. Describes the chemical components of peanuts. Explains how to construct a soda can calorimeter for determining the heat released by a burning nut. Describes how to determine calories and kilocalories. Author asserts the activity can be adopted for children of any age. (eight…

The author asserts that the benefits of animal dissection can be experienced by dissecting electronic devices. Students can dissect an electrical device and write a lab report which includes detailed descriptions, drawings, and sometimes electrical components mounted on a display board. The electronic devices for this activity are brought from…

Discusses the missing water on Mars. Describes five experiments simulating conditions on Mars: (1) behavior of dry ice; (2) low-pressure vacuum; (3) freezing point depression; (4) water in hydrated minerals and clay; and (5) properties of carbon dioxide. (YP)

Discusses simple analysis of urine in the classroom. Describes the materials and procedures for the analysis. Provides a laboratory report giving characteristics of: (1) odor, color, and clarity; (2) specific gravity; (3) sediment; (4) test strips; and (5) albumin and phosphates. (YP)

Describes an experiment relating to fossil populations and using snails. Presented are the procedures and questions for the experiment. Provides four topics for additional study. (YP)

Discusses a graphical analysis method used in the physics laboratory. Shown are various kinds of graphs to illustrate the relationship between two variables. A procedure for deriving equations from laboratory data is described. (YP)

Discusses teaching the names, symbols, and charges of 53 common ions along with those of the elements. Provides an ion quiz sheet. (YP)

To avoid a tedious task for recording temperature, a computer was used for calculating the heat of crystallization for the compound sodium thiosulfate. Described are the computer-interfacing procedures. Provides pictures of laboratory equipment and typical graphs from experiments. (YP)

Small-scale chemistry employs a modern design philosophy and small, inexpensive plastic apparatus to create a learning laboratory that fosters creativity, invention, and problem solving. This article describes the characteristics of the small-scale activities. A n-solutions chemical reaction matrix is provided with examples of classroom use. (YP)

To integrate a research/discovery component into one course, an experiment using the sea urchin embryo system is introduced because the teacher manages only one organism and students provide the variables. The materials, handling methods, and experimental methods of the experiment are described. (YP)

Discusses the issues of animal hunting. Provided is a comparison table of the hunter's view and anti-hunting activists views with six questions to consider. Lists 5 references. (YP)

Discussed is the idea that models should be taught by emphasizing limitations rather than focusing on their generality. Two examples of gas behavior models are included--the kinetic and static models. (KR)

Described is a curriculum for a pathology class offered to eleventh and twelfth graders. Included are suggestions for laboratory activities and student projects. These activities can be incorporated into other science classes. (KR)

Compared were the results of a 1973 study with the results of a similarly analyzed sample of recent textbooks with respect to gender fairness. Illustrations of named and unnamed figures both adult and young were analyzed in seven recent textbooks. (KR)

Discussed is the importance or unimportance of including visuals and illustrations in science textbooks. Characteristics of visuals, misconceptions, individual student differences, publishers views, and recommendations to science teachers when choosing science texts are included. (KR)