Chemistry. According to the Implementation Measures of Beijing Junior High School Academic Level Examination issued by Beijing Municipal Education Commission, the senior high school entrance examination must include six grades: Chinese, mathematics, foreign language, physical education and health, morality and rule of law, and physics, with history and geography given priority, followed by chemistry and biology. The full name of the senior high school entrance examination is the junior high school graduation examination, which is an examination to test whether junior high school graduates reach the junior high school graduation level. It belongs to the academic examination and plays a connecting role.