Earth's hidden treasures /

• Κύριος συγγραφέας: Friend, Sandra
• Μορφή: Ηλ. βιβλίο
• Γλώσσα: English
• Έκδοση: Brookfield, Conn. : Twenty-First Century Books, 1999.
• Σειρά: Friend, Sandra. Exploring planet earth.
• Θέματα: Minerals > Juvenile literature.; Rocks > Juvenile literature.; Rocks.; Minerals.; JUVENILE NONFICTION > Science & Nature > Earth Sciences > Rocks & Minerals.; Electronic books.; Juvenile works.

Explains what rocks, minerals, and gemstones are found on the earth and how they are used by people.

Πίνακας περιεχομένων:

• Preface: Treasures We Take for Granted 9
• 1 The Earth Gives Birth 11
• 2 The Elements Take Shape 15
• 3 A Colorful Equation 23
• 4 Making a Deposit 31
• 5 Tracking Hidden Treasure 41
• 6 A Legacy of Minerals 48.