This past year has been a period of rethinking and consolidation of ideas on earthquake prediction. The Earthquake Hazards Reduction Act became public law. Significant advances in seismographic instrumentation and recording techniques took place and plans proceed to upgrade the capacity of some monitoring stations, using digital recording…

The mixing of sediments by organisms (bioturbation) is discussed. Research techniques are discussed and data on Atlantic bioturbation rates are provided. (CP)

Reviews research and technical problems related to the use of tidal power as an energy source. (SL)

Discusses reviewing and applying chemical principles and relationships observable in the Periodic Table of chemical elements to geologic observation. (SL)

Presents seven topics suitable for a secondary level introduction to geochemistry. (SL)

Describes a course for non-science majors in gems and gemstones developed at the University of Pittsburgh at Johnstown. (SL)

Discusses mankind's influence on climate and projects that increased release of carbon dioxide into the atmosphere will produce a warming of the Earth's surface. (SL)

Discusses developments in earthquake prediction programs. (SL)

The author proposes the inclusion of earth science curricula into the elementary school program because of the inherent interest nature has for young children. Some activities are described. (CP)

Reports on the geology of a 60 square kilometer area located within the central Mt. Lofty Ranges with special references to teaching activities. (CP)

Presents directions for making a three-dimensional model of the ocean floor using simple materials, with procedures for including such features as continental shelves, fractures, and canyons. In addition, steps are given for discovering the shape of another student's model using bathymetry (measurement of depth). (DH)

Suggests using a vortex generator to produce tornados in the classroom. Instructions for making the generator and for producing the tornado are provided. (JN)

Advocates taking students on field trips to highway roadcuts to illustrate various geological principles. Photographs of three roadcuts (with sample objectives and questions/answers for students to answer) are included. Also included are suggestions for preparation, safety, and activities during such field trips. (DH)

Describes paleontological studies of trace fossils (the impressions that record the animal's activity) such as dinosaur footprints. Discusses the importance of findings to our knowledge of dinosaur social behavior and community structure. Also tracts evolution of behavior from the Upper Triassic through the Upper Cretaceous, building evidence of…

Described are the contributions of Benjamin Franklin to eighteenth-century science, particularly in the area of early investigations into electrical phenomenon. (SL)