Presented are four activities which are designed to familiarize children with the multiple uses of computers and help them learn about heat and temperature using temperature probes. Included are the tempering effect of water, heat capacity, caloric content of foods, and weather. Hardware and software are discussed. (CW)

Presented is an activity which uses the annual process of abscission and leaf drop to illustrate all of the phases of the scientific method. Procedures, hypothesis formation, and typical results and conclusions are discussed. Alternative activities are suggested. (CW)

Described is a series of workshops designed to familiarize teachers with the social and legal background, principles of humane care, ethical considerations, and philosophies that influence animal use in the classroom. Discussed are the value of dissection, alternatives to dissection, and student reactions to dissection. (CW)

Described are 14 experiments that use lasers. Topic areas include physical chemistry, analytical chemistry, organic chemistry, inorganic chemistry, and biochemistry. Instrumentation and the use of the laser in undergraduate research are discussed. (CW)

Presented are 29 science activities for secondary school science instruction. Topic areas include botany, genetics, biochemistry, anatomy, entomology, molecular structure, spreadsheets, chemistry, mechanics, astronomy, relativity, aeronautics, instrumentation, electrostatics, quantum mechanics, and laboratory interfacing. (CW)

Eight activities for use in the science classroom are presented. Included are insect collecting, laboratory procedures and safety, recycling, current events, variable manipulation, scientific method, electricity, and mechanics (Newton's Second Law of Motion). (KR)

Described is a means of logging data from remote sensors in data files and then transferring the data to a spreadsheet for processing. The presentation of the data in tabular or graphical form is discussed. An example using temperature data from a model house is provided. (Author/CW)

Described is an activity which can be used to investigate heat expansion in a solid. Included are background, materials, procedures, and suggested discussion questions. A diagram of the apparatus is provided. (CW)

Two classroom activities designed to help students learn to distinguish science from superstition are presented. Procedures are discussed and the two activities are compared. (CW)

The use of concept maps, Vee diagrams, flow charts, and productive questions to increase student understanding of laboratory exercises and to improve student attitudes toward lab classes is discussed. Examples of each are provided. Student responses to these teaching methods are described. (CW)

Demonstrates how to promote the transference of concepts and principles developed in other curricula to enhance a student's subject matter mastery in soil classification. Describes course format, critical thinking techniques, and a course evaluation. A conclusion and references are included. (Author/RT)

Explores the structural behavior of polyenic pi systems such as isomerization and conjugation. Uses the simultaneous spectrophotometric analysis of a beta-carotene and lycopene mixture. Presents an empirical method to determine the number of double bonds in the polyenic carotenoid. (MVL)

Discusses electron spin resonance, a form of magnetic resonance spectroscopy, used to study electronic structure of molecules with unpaired electrons. Studies benzosemiquinone radical anions which are long-lived and inexpensive. Uses a Project SERAPHIM computer program to perform a Huckel molecular orbital calculation. (MVL)

Outlines some strategies used by science teacher educators to train teachers to make laboratory lessons a place for meaningful and useful learning, including content analysis of laboratory manuals, scientific inquiry, flexible organization, concept mapping, Vee heuristics, and inquiry oriented laboratory tests. (YP)

Presents the results of a chemistry program held at Purdue University from July 31-August 4, 1988. Topics reported include: chemistry's past, present, and future; new directions in chemical education, demonstrations and laboratories; and instructional strategies. Lists the 391 papers given at the conference and the 22 workshops. (MVL)