Wilderness Classroom
Ocean Life
Our oceans are composed of many complex relationships. Young oceanographers explore relationships between organisms, understand the world ocean's currents, and discover the effects of water pollution and how it behaves. There are...
National Geographic
National Geographic: Encyclopedia: Ocean Trench
Comprehensive information about deep-ocean trenches. Includes maps, a video [1:29], and a vocabulary list.
Encyclopedia Britannica
Encyclopedia Britannica: Geology: Deep Sea Trench
Detailed information about oceanic trenches, their structure, and how they are formed. Discusses the twenty trenches that exist around the world. Includes several labeled illustrations.
Wikimedia
Wikipedia: Oceanic Trench
Wikipedia provides brief information on oceanic trenches, and has a hyperlinked list of major world trenches.
Science Struck
Science Struck: Facts About the Aphotic (Midnight) Zone of the Ocean
The aphotic zone of the ocean receives less than one percent of sunlight penetration. It extends from between 200 to 1,000 m, or 660 to 3,300 ft, down to the seafloor. Learn about the characteristics of this zone and the adaptations the...
Indiana University
Indiana University: Evolution of Continents and Oceans
A course lecture on how the Earth's geological features have evolved through the movements of tectonic plates. Explains the different types of plate boundaries and how they manifest in geological formations. Also describes the structure...
Museum of Science
Museum of Science, Boston: Oceans Alive: The Living Sea
Find a scale model of the five principal ocean zones, along with additional information.
Woods Hole Oceanographic Institution
Woods Hole Oceanographic Institute: What Are the Deepest Parts of the Ocean?
A brief description of the ocean's deepest parts.
University of California
Ucmp: Plate Tectonics: The Mechanism
A basic description of the driving force behind plate movement. Describes major features of the ocean floor including mid-oceanic ridges.
Other
San Andreas fault.org: Tectonics
Provides a good overview of plate tectonics with embedded links to related information.
Wikimedia
Wikipedia: Pacific Ring of Fire
Wikipedia offers information on the location of the Pacific Ring of Fire, an area of frequent earthquakes and volcanic eruptions. Map included.