Discussed is the importance of marine education and experience with the seashore in helping children to adopt positive attitudes about nature. (CW)

Presents examples where mathematical and physical reasoning complement each other in interpreting and analyzing some basic science concepts using proof by contradiction and contrapositive. Examples involve the rotation of the moon, the stability of electrons and protons, the electron's orbit about the nucleus, and the earth's liquid core. (MDH)

Presents a lesson plan about greenhouse effect and global warming. Includes diagrams and graphs from which students are asked to make inferences. Provides background information about how energy enters and leaves the earth system, the energy budget, consequences of obstructing the energy balance, and the greenhouse effect. (three references) (MCO)

The Hubble Space Telescope project is described. Discussed are the project directors, construction, launch, deployment, hazards, rationale, and hope of the project. (CW)

Presented is the best understanding of the flaw discovered in the optics of the Hubble Space Telescope and the possible solutions to the problems. The spherical aberration in the telescope's mirror and its effect on the quality of the telescope's imaging ability is discussed. (CW)

Describes a project that addressed the problem of courseware reusability by developing a database structure suitable for organizing multimedia learning material in a given content domain. A prototype system that allows browsing a DBLM (Data Base of Learning Material) on earth science is described, and future plans are discussed. (five references)…

A learning cycle activity which allows students to practice process skills by sieving different size fractions of sediments is described. Science topics include weathering, erosion, streams, sedimentation, sedimentary rocks, soils, beaches, dunes, or glacial deposits. Mathematics topics include number lines, ordinal numbers, greater than/less…

Describes a lesson plan for use in physical geography, earth science, and social studies classes. Suggests that students will find the problem solving approach interesting and will use knowledge of earth-sun relationships, absolute location, and place. Includes objectives, two days of learning activities, evaluations, resources, and an activity…

Changing ideas about the origin of the Silurian Clinton oolitic ironstones in eastern United States provide an instructive example of how interpretations develop as knowledge increases. (PR)

The principles of magma addition and liquid layering in magma chambers can be demonstrated by dissolving colored crystals. The concepts of density stratification and apparent lack of mixing of miscible liquids is convincingly illustrated with hydrous solutions at room temperature. The behavior of interstitial liquids in "cumulus" piles…

Describes an activity where students find the locations and elevations of their homes, school, favorite parks and lakes, and other significant places as they learn topographic skills and unique features of the community. (PR)

Explains that the use of data on CD-ROMs gives undergraduate students an economical way to work with real data on potentially publishable projects. Describes a student project using the data on the World WeatherDisc to find evidence of Indian Summer in Spokane, WA. (PR)

Discusses high school science and technology education and requirements for the job market and describes SciTeKS (Science Technology, Knowledge, and Skills), a standards-based, multimedia, modular high school program in chemistry, biology and the earth sciences designed by the American Chemical Society to introduce students to science technology…

Discusses advances in hypermedia as an instructional tool for earth system science education as a mechanism for designing user-friendly and structured classroom units. Proposes two models as a foundation for materials development: (1) the Learning Cycle Model; and (2) the Investigation/Experimentation Model. (Author/CCM)

Describes a study of Greek high school students' (n=116) perceptions of the ozone layer. Finds that students have a good understanding of the position and purpose of the ozone layer in terms of protection from ultraviolet rays, but students also hold misconceptions linking the ozone layer to the greenhouse effect and other forms of local…