When Carruthers is miserable with a cold, Eugene and Emily cheer him up with a story about a wonderful adventure shared by three friends one summer afternoon on the river.
Describes the different types of water in the world's rivers and lakes, explains how rivers helped shape the world, and explains the life cycle of a lake.
Describes the water cycle, how rivers flow from source to the sea, the plant and animal life supported by rivers, how humans use rivers, and some of the world's longest rivers.
Contains basic information on rivers, in simple text and illustrations, including how rivers are made, how rivers change, and what their habitats and ecosystems are like. Includes a list of related reading sites, a glossary, and an index.