1, Mathematics: Mathematics is the foundation of natural science, which studies concepts such as quantity, structure, space and change.
2. Physics: Physics studies the basic properties and laws of motion of matter, including mechanics, heat, electromagnetism, optics and atomic physics.
3. Chemistry: Chemistry studies the composition, properties, structure and changing laws of substances, including inorganic chemistry, organic chemistry, analytical chemistry, physical chemistry and biochemistry.
4. Astronomy: Astronomy studies the structure and development of the universe, including the solar system, galaxies, stars, planets, comets, meteors and cosmic rays.
5. Earth science: Earth science studies the structure, nature, evolution and resources of the earth, including geology, geography, meteorology, oceanography and seismology.
6. Biology: Biology studies the origin, evolution, structure, development and function of life, including zoology, botany, microbiology, genetics, ecology and physiology.
7. Natural science is the general name of a large class of disciplines, including all disciplines that study natural phenomena and laws. These subjects explore and understand natural phenomena and laws through observation, experiment and theoretical analysis, aiming at revealing their essence and internal relations.