Gold - Couverture souple

Edwards, Ron; Gladstone, James

Couverture souple

ISBN 10 : 0778714454 ISBN 13 : 9780778714453

Editeur : Crabtree Publishing Co,Canada, 2009

Synopsis

Ages 7 to 14 years. Unlike other metals, such as copper or lead, gold is prized for its beauty and scarcity rather than its usefulness. As a metal, it is too soft to use for tools or weapons, and is used mainly as money, in jewellery, and in electronics as a conductor of electricity. This colourfully illustrated new book describes both the basics of this dazzling metal and our fascination with it throughout history. Topics include: how gold is formed; lode or vein deposits underground and placer deposits in water or dry creek beds; a day in the life of a prospector; gold in history including ancient Egyptian jewellery and alchemists who tried to turn lead into gold in the Middle Ages; the great gold rushes in California, Nevada, the Klondike, Australia, South Africa, and other parts of the world; gold mining methods such as open pit, underground, and hardrock mining; how gold ore is refined; the damage done to the environment by gold mining, such as changing the landscape and wildlife habitats, and waste rock and water pollution from the refining process.

A propos du livre

Présentation de l'éditeur

Unlike other metals, such as copper or lead, gold is prized for its beauty and scarcity rather than its usefulness. As a metal, it is too soft to use for tools or weapons, and is used mainly as money, in jewelry, and in electronics as a conductor of electricity. This colorfully illustrated new book describes both the basics of this dazzling metal and our fascination with it throughout history. Topics include: how gold is formed; lode or vein deposits underground and placer deposits in water or dry creek beds; a day in the life of a prospector; gold in history including ancient Egyptian jewelry and alchemists who tried to turn lead into gold in the Middle Ages; the great gold rushes in California, Nevada, the Klondike, Australia, South Africa, and other parts of the world; gold mining methods such as open pit, underground, and hardrock mining; how gold ore is refined; the damage done to the environment by gold mining, such as changing the landscape and wildlife habitats, and waste rock and water pollution from the refining process.

Détails de l'édition

• Éditeur: Crabtree Publishing Co,Canada
• Date d'édition: 2009
• Langue: anglais
• ISBN 10: 0778714454
• ISBN 13: 9780778714453
• Reliure: Broché
• Nombre de pages: 32
• Coordonnées du fabricant: non disponible
• Personne responsable: non disponible