Why does it rain? This title introduces readers to the water cycle. Evaporation, precipitation, condensation, and other vocabulary words are defined. Each stage of the water cycle and why it is important to humans is explained. Graphics provide additional support. An activity to help readers understand the concept is included.
"These straightforward presentations about water-related topics will serve readers needing basic facts for reports. . . .Although collections needing report material might want to add the entire series, those with limited budgets or an ample supply of water-related titles might select only Cleaning Water, a first choice for most libraries."
