Describes the complex communities of animal and plant life found in freshwater and marine ecosystems; presents a visit with a marine biologist, discussing the oyster population of the Chesapeake Bay; and includes a hands-on experiment on the effects of pollution on lakes and ponds.
Alternates factual information on the ecological aspects of water with activities and experiments, covering such areas as the behavior of warm water, acid rain, and pond life.
Presents an examination of phytoplankton--minute plant-like organisms that drift about in water, looking at different types of phytoplankton, considering their significance, and discussing the work of scientists who study the organisms.
Provides an introduction to water habitats, including oceans, coral reefs, shores, lakes, ponds, rivers, and swamps, and looks at some of the plants and animals that live in each environment.