Sand /
by Ellen J. Prager ; illustrated by Nancy Woodman.
- Washington, D.C. : National Geographic, [2006], c2000.
- 29 p. : col. ill. ; 23 x 28 cm.
- Jump into science. .
Describes the formation of sand from materials such as coral, rock, or crystals and shows how it can be moved through water, wind, ice, and other erosion agents.