salt

Examines the scientific reasons the ocean and some lakes have salt water. Includes a related science experiment, a glossary with pictures, resources for further information, and color photographs.

Explores all facets of salt as a natural resource in North America, investigating its natural history, human use, technology, environmental impact, and economic significance.

"How does seawater turn into crystals of salt? Follow each step--from filling ponds with seawater to sprinkling salt on your popcorn--in this fascinating book!"--.

Chronicles the history of salt, discussing how it has shaped civilizations from the earliest beginnings of world history and how it has been used in different cultures.

Discusses the importance of salt and describes the mining and processing rock salt which is used in industry and agriculture and the manufacture of table salt which originates in brine pumped from the ground.

This book tells you how salt is taken out of the ground and used in our food.

Provides a variety of historical and scientific facts about salt.

Explores the origin and uses of salt, both in the ancient world and today.

Photographs and text describe how salt is harvested and used around the world.