Chinese Inventions

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Across
  1. 3. very fine glass product
  2. 4. used to launch things high
  3. 6. explosive to propel bullets
  4. 7. this makes riding a horse easier on feet
  5. 8. used to do math
  6. 11. keeps those cavities away
  7. 13. 52 of them in a deck
  8. 16. let soldiers carry a lot of supplies
  9. 17. used as a signal, and for fun
Down
  1. 1. rainy day thing
  2. 2. most popular drink in the world
  3. 3. made from ground wood
  4. 5. needs a magnet to work
  5. 9. shoots a bolt ( small arrow)
  6. 10. start a fire with these
  7. 12. these detect earthquakes
  8. 14. loom used to make very fine cloth
  9. 15. a pencil sharpener uses this