Describes petroleum exploration techniques, particularly the interpretation of seismograms. (CP)

Although soil erosion is a natural process, it has increased to the point where it far exceeds the natural formation of new soil. However, with only occasional exceptions, national agricultural and population policies have failed to take soil depletion into account. Projections of world food production always incorporate estimates of future…

THE PURPOSE OF THIS GUIDE IS TO ASSIST TEACHERS IN PREPARING POST-SECONDARY STUDENTS FOR AGRICULTURAL CHEMICAL OCCUPATIONS. IT IS ONE OF A SERIES OF MODULES DEVELOPED BY A NATIONAL TASK FORCE ON THE BASIS OF STATE STUDY DATA. SECTIONS ARE (1) PHYSICAL AND CHEMICAL ALTERATION OF SOIL WITH CHEMICAL ADDITIVES, (2) TERMINOLOGY AND COMPUTATIONS, (3)…

This module expands on the introductory discussion of nitrogen in other modules. The various chemical forms of nitrogen found in land treatment systems are defined. Inputs from waste application as well as natural sources are quantified for typical situations. A discussion of nitrogen transformations in the soil includes mineralization and…

Natural soil fertility is now declining on an estimated one-fifth of the world's croplands. Direct evidence of the mounting pressures on the global cropland base is seen in accelerating soil erosion, the spread of deserts, and the loss of cropland to nonfarm uses. (Author/BB)

Presents a variety of outdoor and classroom activities in which soil is used to teach environmental concepts and to provide students with science process skills practice. Areas considered include: site selection and description; compaction; infiltration rate; temperature; components; water content; and microorganisms. (DH)

This book is designed to educate students in grades 4-8 about eight specific aspects of the environment. Activity-oriented experiences for both urban and rural children to gain certain understandings are provided. Concepts addressed include the fact that humans are animals and are living organisms, animals differ from plants in their ability to…

This booklet provides students with challenging and fun activities to encourage learning about the sustainability of natural forest resources. Activities include: (1) "Forest-opoly"; (2) "Lost in the Woods"; (3) "Chain of Changes"; (4) "Choices, Choices"; (5) "Conflicts & Controversies"; (6) "Tree Towns"; (7) "Feeding the Forest"; (8) "Get to the…

Presents a brief review of inorganic fertilizers. Topics include preparation, properties, usage, crop production and composition, residual value in soil, and new fertilizers. (BB)

Provides a brief review of the use of pheromones and other behavior-controlling chemicals in pest control. Topics include control of moths, butterflies, beetles, aphids, nematodes, and slugs. (BB)

Reported are the results of a survey of awareness, use, and attitude of Indiana secondary school agriculture and social science educators toward soil survey reports. An analysis by teaching discipline and geographic location is presented. (CW)

Describes teaching techniques that facilitate the use of the systems approach. Includes explanations of the Kolb learning styles, a "job hire" exercise, mind mapping, and a technique for problem analysis. Presents information on pre-workshop materials, tables of generated competencies, and a hierarchy of rational problem-solving approaches. (RT)

Discusses the destabilizing influences that affect feedback systems in the earth and trigger disorganization. Presents information that integrates mantle degassing with feed-back systems, and the Sun-Earth-Space energy flow system which is the primary source of energy that drives the Earth's biosphere. (RT)