Pinyin/Natural science

Natural science is a branch of science concerned with the description, prediction, and understanding of natural phenomena, based on observational and empirical evidence. Validity, accuracy, and social mechanisms ensuring quality control, such as peer review and repeatability of findings, are amongst the criteria and methods used for this purpose.

Natural science can be broken into two main branches: life science (or biological science) and physical science. Physical science is further broken down into branches, including physics, astronomy, chemistry, and Earth science. All of these branches of natural science are divided into many further specialized branches (also known as fields), and each of these is known as a "natural science".

Zìrán kēxué shì jīyú guānchá hé jīngyàn zhèngjù, miáoshù, yùcè hé rènshí zìrán xiànxiàng de kēxué fēnzhī. Yǒuxiàoxìng, zhǔnquèxìng, hé shèhuì jīzhì quèbǎo zhìliàng kòngzhì, lìrú tóngháng shěnchá hé jiéguǒ de kěchóngfùxìng, jiùshì yòngyú zhè mùdì de biāozhǔn hé fāngfǎ.

Zìrán kēxué kě fēnwéi liǎng gè zhǔyào fēnzhī: Shēngmìng kēxué (huò shēngwù kēxué) hé wùlǐ kēxué. Wùlǐ kēxué jìnyībù fēnwéi wùlǐxué, tiānwénxué, huàxué, dìqiú kēxué. Suǒyǒu zhèxiē zìrán kēxué fēnwéi xǔduō gèng zhuānmén de fēnzhī (yòu chēngwéi lǐngyù), zhèxiē dōu bèi chēngwéi “zìrán kēxué”.