Provides a brief account of the discovery and theory of antimatter and describes several activities relevant to the study of antimatter on the secondary level. (MLH)

Discusses the basic principles of baking soda chemistry including the chemical composition of baking soda, its acid-base properties, the reaction of bicarbonate solution with calcium ions, and a description of some general types of chemical reactions. Includes a science activity that involves removing calcium ions from water. (LZ)

Describes classroom science demonstrations and experiments that simulate the process of fossil formation. Lists materials, procedures and suggestions for successful activities. Includes ten student activities (coral fossils, leaf fossils, leaf scars, carbonization, etc.). Describes a fossil game in which students work in pairs. (CS)

Lists materials and procedures for constructing a model that demonstrates certain aspects of the Coriolis effect. Materials include an electric drill motor, voltage control, toy dart gun and darts, wood blocks of varying dimensions. Includes description of an experiment illustrating relationship between speed of rotation and amount of apparent…

Describes an instructional unit and objectives on machine design and principles that centers on student-constructed miniature automobiles. (MLH)

Describes some simple activities that teach the use of the metric system. (MLH)

Described is a classroom activity for analyzing an inherited human trait, the ability to tast phenylthiocarbamide (PTC). Formulas for analyzing gene frequency are given for classroom and neighborhood samples. Additional tables include statistics on the ability to taste PTC and other easily sampled human traits. (MA)

Presents an activity whereby students describe the path of Mars through a background starfield. Includes purpose, materials, pre-lab, and procedure. Also provides guidelines for making a dial-a-planet wheel. (MA)

Describes some activities for students in which the quantity of heat is measured in exercises that use inexpensive materials. (BR)

Describes a secondary project in which students must organize an expedition to settle the people of the Earth on a new planet. (MLH)

Describes a variety of classroom aids and indicates the sources. Included are storage facilities, sound experiments, stop watch, ultraviolet lamp, calculators, animal cages, and others. (RH)

Discusses the eleven-year sunspot cycle and its effect on the temperature and precipitation in the world's weather zones. (MLH)