Across
- 3. contained a wheel that made one turn every 24 hours. Sounds at different intervals would let people know what time it was.
- 4. before this invention, coins were used as the only form of currency. It was printed with woodblock and included many colors
- 7. a device with a magnetic piece of metal that points north. It is used to navigate open seas
- 10. allowed the Chinese to travel much faster on lakes and rivers
- 12. the mass production of this metal was crucial to the Industrial Revolution and has become one of China's most important industries.
- 15. a way to stimulate a person's immune system against a certain disease by exposing them to it.
- 16. made when Chinese alchemists experimented with saltpeter and discovered they could use it to make an explosive powder.
Down
- 1. powered by a black powder made of saltpeter, charcoal, and sulfur. Originally used as fireworks, but later became weaponized
- 2. printers used woodblock printing to make these from thick paper, and artists would draw designs on the back
- 5. a type of white, hard, waterproof pottery made from combining clay with quartz and feldspar
- 6. this invention made it easier for boats to move through different water elevations by raising or lowering the nearby water level
- 8. all newspapers, books, and magazines were printed using this method until recently
- 9. because of this technology huge ships could now hold 500 people and contained watertight compartments to keep them from sinking
- 11. a way of printing that used symbols carved into wood. The only problem was that changes could not be made to it once it was carved
- 13. spread from China to other parts of the world. It has played a vital role in the recording and transmitting of information
- 14. seeds of this plant were taken all over the world and it would become one of the most popular beverages in the world today