PBS
Nh Pbs: Nature Works: Ocean Zones
Discover more about the underocean environment at this site that surveys animals, environmental factors such as light and temperature, currents, animals, plants, and the like.
Enchanted Learning
Enchanted Learning: Zoom School: Oceans
Find out why the oceans are blue and what causes waves by clicking here. There is a table of information about the four oceans as well as interesting facts on waves, salinity, and tides.