Extensive article on mangroves. Covers classification, physical characteristics, life cycle, habitat, economic value, and natural and human threats to their survival.

Travel with your students on a virtual field trip to learn about saltwater marshes!

Everything you always wanted to know about the Everglades! The Florida Museum of Natural History offers great photos and good information on the many habitat types to be found there.

Of course it can, you say: ice is water and ice floats. And you're right. But we're talking about water in the liquid phase Can liquid water float on water? The goal of this project is to investigate what happens to layers of water with...

A collection of articles, video, and some teaching guides on issues related to coastal ecosystems. Includes environmental issues, e.g., oil spills, and different types of ecosystems, e.g., mangroves and coastal grasslands.

A project-based collaborative unit of study that teaches students about watershed health using real-time geospatial technology. Students engage in outdoor field experiences while using twenty-first century learning skills.

Resource that gives information on the diet, range, relatives of the blue whale. Conservation notes and cool facts are also included. There are links to similar information on dozens of other types of marine life.

This in-depth resource offers facts on the ecosystem of the Puget Sound. Includes a searchable database of regional animals, described by both their scientific and common names.

Learn about EPA's work to protect and manage water resources and what you can do to help.

This site provides extensive information about streams. It gives an in-depth look at what a stream is, the kinds of wildlife that live by streams, and things we can do to protect and prevent pollution of streams.

Good illustrated introduction to Spartina salt marsh ecology. Focus on the grasses and their interactions with each other and the animals that inhabit the marsh.

Wetlands are an integral piece of Earth's ecology. Wetland structure is described as well as their role in the health of plants and animals. Issues concerning destruction and preservation efforts also discussed.

Follow Bradan the salmon as he survived his swim through the estuary and swims happily into the Atlantic Ocean.

[Free Registration/Login may be required to access all resource tools.] Aquatic biomes can be generally classified based on the amount of salt in the water. Freshwater biomes have less than 1% salt and are typical of ponds and lakes,...

Describes the properties of seawater and the variations depending on its location, e.g., near a shoreline, in an estuary, or as sea ice. Discusses the instruments scientists use to measure the density of water and explains other...

Students are introduced to the various marine environments, their unique formations, origin and identifying characteristics.

This site contains a wealth of information. You can click on shorelines, temperate oceans and tropical oceans. Each page contains links to even more information.

This is an introduction to the major biomes on Earth. This page groups biomes into five major types: aquatic, deserts, forests, grasslands, and tundra. Information on climate, animal/plant life, and much more is given for each of type...

The University of California Museum of Paleontology hosts this site devoted to the study of the earth's biomes, which are the world's major communities, classified according to the predominant vegetation and adaptations of organisms to...

NOAA Smart Buoys collect and transmit real-time weather, water conditions, and water quality data. Chesapeake Exploration gives teachers and their students unprecedented access to lessons designed around real-time observational data from...

[Free Registration/Login may be required to access all resource tools.] Covers freshwater biomes and wetlands.

The Evergreen Project profiles the natural history of rivers and streams. Topics include watersheds, how a stream becomes a river, erosion, water pollution, and the like.

Discover the types of water biomes.

[Free Registration/Login may be required to access all resource tools.] Features of streams and rivers.