Until now, studies that involve the ocean floor have been at a disadvantage due to an almost complete lack of accurate marine base maps. Materials presented here serve to introduce the Pacific Seafloor Mapping Project, an endeavour by the United States Geological Survey to produce high-resolution base maps of the sea floor. These maps are intended for use in identifying areas of erosion and deposition ... Full description.

Visitors to this site can access general information about earthquakes, such as frequently asked questions, seismic hazards, and building code information. Real-time information on specific events in western Canada is available in the form of maps and lists, and is updated hourly. For teachers, there is a set of links to background materials, computer and classroom activities, and seismic data. A ... Full description.

Visitors can read about the characteristics of volcanism on Mars and how it differs from volcanism on our own Moon. A map is provided to show the locations of various volcanic structures. Links to related topics are also included. Full description.

A study of the geology of Mars should reveal answers to such questions as how Mars developed into the planet we see today and what accounts for the differences and similarities between Earth and Mars. Visitors to this site can learn about ancient magnetism recently discovered by the Mars Global Surveyor that suggests the planet was once more dynamic and Earth-like with a magnetic field shielding the ... Full description.

NASA's Visible Earth is a searchable directory of images, visualizations, and animations of the Earth. The images are also listed under the following categories: agriculture, atmosphere, biosphere, cryosphere, human dimensions, hydrosphere, land surface, oceans, radiance or imagery, solid earth, locations, and satellites. Accompanying each image are credits, data about the image, the satellite it ... Full description.

This set of links provides users with access to a variety of lesson plans and activities about volcanoes. Full description.

This description of a ground-water aquifer has a graphic representation to accompany it. It is part of the U.S. Geologic Survey's Water Science for Schools website. Links to other parts of the site, such as definitions and types of wells, are included. Full description.

Students may read and view pictures about how to become a volcanologist. Educational requirements and likely places where volcanologists may work are covered. Links to related sites are provided. Full description.

The aerial video and still photography assembled here allows users to see "before" and "after" imagery of the impacts of coastal storms. Oblique images are available for storms from Hurricane Ivan in 2004 to Hurricane Fran in 1996. Each set of images is accompanied by a brief description, and some LIDAR imagery is avaliable. Links to other related sites are also included. Full description.

Appalachian Mountain landforms clearly demonstrate the relation of plate tectonics and structure to geomorphology. The folded rocks record the convergence of two continental plates in Pennsylvanian/Permian time. This page uses text, maps, and remotely sensed imagery to explain the relationship between plate tectonics, geologic structures, and the resulting landforms. It is part of an out-of-print ... Full description.