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tea-made by letting tea leaves steep in booiling water-was drunk mostly as medicine.
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The first chinese compass were pieces of a magnetic mineral called lodestone.
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Steel is made from iron, but it is less brittle than iron and easier to bend into different shapes.
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Porcelain is made by combining clay with the minerals quartz and feldspar.
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The earliest chinese paper was probably made from hemp and then the dark of the mulberry tree
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In the 7th century, the chinese invented a technique called woodblock printing.
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Like game cards, paper money was printed with wood blocks.
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Chinese alchemists accidentally discovered when they were looking for the secret to eternal life.
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Printers used woodblock printing to make the cards from thick paper.
