| Term | Definition |
| Inventions of the Han dynasty | water wheel, iron drill,, rudder |
| what effect did the water wheel have | helped farmers grind more grain |
| what effect did the iron drill have | mine more salt |
| what effect did the rudder have | ships could sail into the wind |
| Qins accomplishments | unified China,one currency, strong central government, built roads |
| Accomplishments of the Han dynasty | medicine, mining and ironwork, government, ships, mills |
| Qin Shihuangdi | First Qin Emporer |
| what idea did Qin use | legalism |
| Censors | government officials used by qin to make sure other government officials did their job |
| why did people rebel again Qin | cruel leader, he reduced aristocrats power burned scholars writings, made farmers build road and the great wall |