Soviet education edition. Chinese, mathematics, foreign languages, physics, politics and history use People's Education Edition, biology use Zhejiang Education Edition, geography use Hunan Education Edition, and in 2022, chemistry (compulsory+elective) in senior high schools in Zhejiang Province use Jiangsu Education Edition. Chemistry is a natural science, which studies the composition, properties, structure and changing rules of substances at molecular and atomic levels and creates new substances.