Hock, Peggy, 1948- Our Earth.

Scholastic news nonfiction readers.

Word hunt -- Earth's water -- Lots of salty water -- People need water -- Down the drain -- How to save water -- Be a water detective -- Your new words -- Where does freshwater come from?

"Where does your water come from? Water falls as rain or snow. Water collects in rivers, lakes, and oceans. Some of this water can be cleaned and used for drinking. People work to make sure Earth has enough clean water. This book will tell you how you can help"--Publisher's description

590L