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Steel is made from iron, but it is less brittle than iron and easier to bend into different shapes. Chinese steel was made from cast iron. The Chinese were the first to learn how to make cast iron by melting and iron ore.
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Tea farmers grow tea trees or shrubs, and when they are ready, the tea leaves are picked by hand. The farmers let the leaves dry out and then them in an oven.
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The Chinease made a wheel that that made 1 complete turn every 24 hours.Dripping water made it turn, and drums and bells told people what time it was.
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Paper money was made by wood blocks and were very colorful. At the time, coins were the only type of currency.
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Printers used woodblock printing to make cards from thick paper. Then, famous artists drew the designs that were on the back of them.
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Alchemists invented gun powder accidently when they were trying to find a substance that might make us live forever.
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Porcelain is made by mixing clay with quartz and feldspar. Then, it is fired in a kiln, at high temperatures. It looks beautiful and delicate. Historians think that Chinese porcelain was being made as early as the 1st century.
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These rockets were made of saltpeter, charcoal, and sulfur. They were first only used for fireworks, but later were used for weapons.
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These rockets were built mainly for their army. The first stage propelled the rocket through the air. The second stage dropped arrows down on the enemy.
