Provides information about silk, where and how it is made and processed, and its use throughout history. Includes a glossary and resources for further study.
Provides information about salt, where it is found and processed, and its importance in everyday life. Includes a glossary and resources for further study.
Provides information about rice, how it is planted and harvested, and its importance throughout history. Includes a glossary and resources for further study.
Provides information about potatoes, where and how they are grown, and their many uses in everyday life. Includes a glossary and resources for further study.
Provides information about pearls, where and how they are found, their uses throughout history, and the dangers posed to pearls by disease and pollution.. Includes a glossary and resources for further study.
Provides information about oil, where and how it is found and processed, and its many uses in everyday life. Includes a glossary and resources for further study.
Provides information about iron, where and how it is found and processed, and its many uses in everyday life. Includes a glossary and resources for further study.
Provides information about diamonds, where and how they are mined, and their many uses in industry and as luxuries. Includes a glossary and resources for further study.
