Salt /
John Paul Zronik.
- New York, NY : Crabtree Pub. Co, c2004.
- 32 p. : col. ill. ; 28 cm.
- Rocks, minerals, and resources .
Includes index.
What is salt? -- Salt is a mineral -- How does salt form? -- Salt in history -- Finding salt -- Where is the salt? -- Producing salt -- Salt processing plants -- Many uses of salt -- Salt and the human body -- Pollution problems -- Glossary.