Natural science sciences, there are three great branches of "natural science" which stand apart by reason of the variety of far reaching deductions drawn from a small number of primary postulates — they are mechanics, electrodynamics, and thermodynamics. Today, natural sciences are more commonly divided into life sciences, such as botany and zoology; and physical sciences, which include physics, chemistry, geology, astronomy, and materials science. Natural science Natural science is a branch of science concerned with the description, prediction, and understanding of natural phenomena, based on empirical evidence from observation and experimentation. Mechanisms such as peer review and repeatability of findings are
China Association for Science and Technology published by Science & Technology Review Society. China Association for Science and Technology The China Association for Science and Technology (CAST) is a non-profit, non-governmental organization of Chinese scientists and engineers, which is composed of 167 national professional societies and hundreds of local branches at various levels. The major tasks of CAST are: i) to promote the advancement of science by means of scientific exchanges; ii) to popularize scientific knowledge among the general public; iii) to safeguard the legitimate rights of scientists and engineers and organize them to participate in the political life of the state; iv) to award scientists