This site is a wonderful resource for the geology or biology teacher who wants to teach kids about the many components of the living oceans. The Office of Naval Research’s Science and Technology Focus Site on Oceanography presents research that is the foundation for technologies used by sailors and Marines every day. The easy-to-understand and visually pleasing web site provides kids and teachers with succinct descriptions of the “Ocean in Motion,” including how and why waves, tides, and currents work, and outlines the many various “Ocean Habitats,” such as coral reefs and kelp forests. A section on marine mammals describes the many interesting characteristics that set ocean mammals apart from other animals, as well as adaptive features for watery living and information about migration and world distribution. Facts about the composition of ocean water, ocean regions, current oceanic research and discoveries, and learning activities help round out the site. All sections are vividly illustrated with photographs and detailed, understandable diagrams. According to the site, more than 70 percent of the earth’s surface is covered with oceans. This is a great place for educators to help kids discover that watery world.