This presents several classroom activities that have been adapted from the Expedition Yellowstone program activities for fourth, fifth and sixth graders. Language arts, science, math, and social studies activities are presented. Expedition Yellowstone activities focus on the geology, ecology, animal life, and history of Yellowstone Park. (IAH)

Describes the major technological hurdles that scientists and engineers must overcome if humans are to make extended explorations of space in manned vehicles. (ZWH)

Presents a unit that uses remote-sensing images from satellites and other spacecraft to provide new perspectives of the earth and generate greater global awareness. Relates the levels of Bloom's hierarchy to different aspects of the remote sensing unit to confirm that the concepts and principles of remote sensing and related images belong in…

Describes scientific research on an Earthwatch expedition to study Arenal, one of the world's most active volcanoes, in north central Costa Rica. The purpose of the two-week project was to monitor and understand the past and ongoing development of a small, geologically young, highly active stratovolcano in a tropical, high-rainfall environment.…

Defines geodiversity, compares it to biodiversity, and discusses the mineral classification system. Charts the discovery of new minerals in Australia over time and focuses on uses of these minerals in technological advances. (DDR)

Introduces activities on nitrogen, nitrogen pollution from school commuters, nitrogen response in native and introduced species, and nutrient loading models. These activities help students determine the nitrogen contribution from their parents' cars, test native plant responses to nitrogen, and experiment with the results of removing water from…

Reports on students' preexisting knowledge and examines misconceptions among nonscience major undergraduate students. Focuses on evaluating results of misconceptions in selected astronomy courses. (YDS)

Presents a study designed to test the effectiveness of a constructivist-historical teaching strategy in changing students' misconceptions about the earth's shape and gravity at the upper elementary and middle school levels. Contains 27 references. (DDR)

Focuses on student awareness of careers in the geosciences. Provides an example of an instructional situation that motivated a student to pursue such a career. Includes a career-oriented poster and a list of geoscience careers. (DDR)

Presents a case study to teach about the relationship between sinkhole development and groundwater levels in Orlando, Florida. Discusses the relationship between groundwater levels and sinkhole formation in a karst terrane. Includes discussion questions. (YDS)

Presents an activity exploring the process by which satellite imagery is produced. (MKR)

Explains biosphere troubles due to tropical deforestation. Discusses long term consequences and effects. First published in 1988. (YDS)

Explains the use of a Sun Tower in different activities at elementary grade levels while addressing national and state science standards. Shows the movement and motion of the sun in the sky. Introduces an activity that includes the sun tower in which students observe the changes of shadows every half hour. (YDS)

Makes the case that geologic fieldwork requires more than knowledge of basic skills learned in the standard undergraduate curriculum. Argues that synthesis of the skills into a schema must be done before one can address the kinds of problems that arise when doing field investigations. Argues for the use of descriptive geometry and trigonometry in…