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...
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.
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.