Excellent teaching resource from U.S.G.S on water, from basic properties to water quality, inventory of world water sources, how to measure streamflow, components of water use patterns, human impacts, offers a quiz in the interactive Activity Center. Site also available in Spanish, interactive diagram with details of water cycle is available in 50 languages. Provides map and data libraries on who ... Full description.

Classroom activities based on how scientists study active volcanoes on the deep ocean floor. Activities include: locating an earthquake epicenter, recording geological and biological information during an ocean floor traverse, creating cross-section profiles of the ocean floor, and graphing seafloor data. Resources include videos and teacher guides. Full description.

Estuaries are places where rivers meet the sea and are critical to the health of coastal environments and our enjoyment of them. Website features abundant information on the legal and scientific aspects of estuary preservation. Includes guidelines, program profiles, and a shorter version in Spanish. Resources for teachers and students include games and activities. External links to additional programs ... Full description.

An educational and research database for the conservation and biology of Mediterranean sea turtles. Includes information on sea turtle biology, classification, natural & manmade threats, conservation groups, and an identification key. Educational activities include online data, a computer game, online quizzes, and animated bone dissections. Maps and data from Esmeralda, a satellite-tracked Green ... Full description.

An interactive, online tour of Monterey Bay Aquarium's kelp forest exhibit with live images from the Kelp Cam. Kelp forest background information, kelp species profiles and kelp forest animal profiles are covered. Students will enjoy the online interactive activities: a crossword puzzle, tic-tac-toe, critter cards, coloring sheets and games. Special features include a cool facts window, e-postcard, ... Full description.

A comprehensive collection of Kingdom Animalia species accounts with information on distributions, natural history, conservation, and economic importance. Site features a wealth of information, pictures, and sounds. Entries are arranged in a taxonomic hierarchy. Educator resources are available for grades K-college, and feature a species account or photo submission section. Full description.

Joint US and France project, the TOPEX-Poseidon satellites continuously measures sea surface height. Oceans store and transport solar heat, helping to keep Earth's climate in balance. The overall shape of the oceans' "hills" and "valleys" is called ocean surface topography, or OST. Precise knowledge of OST is essential to predict the effects of catastrophic storms. Educational resources available ... Full description.

This comprehensive site is an introduction to sea ice: what it is, how it forms, how it is studied, how it affected historical expedition in the polar regions, and what role it plays in the global climate. The site contains a glossary of sea ice terms and references to additional information, which all serve as an excellent introduction. Data are also available from various collection methods for ... Full description.

Chesapeake Bay Program's data network providing access to water quality, living resources, fisheries, point source, plankton, and monitoring databases. Site provides a wealth of data and graphs all concerning the health of Chesapeake Bay waters. Features an interactive "bay atlas" where you can access such information as public access sites, habitat restoration sites, water quality monitoring sites, ... Full description.

Take this virtual tour of hydrothermal vents to learn the basics about vents, how they are studied, the associated biology and geology, and consider the ethics about vent mining. This highly interactive site also has a forum for discussion, glossary, and classroom learning activities. A certificate of achievement is available for download once students successfully navigate the sight and become vent ... Full description.