观察是人们为了认识事物的本质和规律,通过感觉器官或同时借助一定的科学仪器,有目的、有计划地考察、描述各种自然现象自然发生的一种方法。或者说是把外界的自然信息通过感官输入到大脑中,经过大脑的处理,形成对外界的感知。化学是一门实践性很强的科学。许多化学现象,化学运动规律都要通过实验来获得,通过实验来证实。许多化学上的重 Observation is that people in order to understand the nature and laws of things, through sensory organs or by means of certain scientific instruments at the same time, purposefully and systematically investigate and describe a natural occurrence of a variety of natural phenomena. Or put the outside world’s natural information through the senses into the brain, through the brain’s processing, the formation of the perception of the outside world. Chemistry is a very practical science. Many chemical phenomena, chemical movement laws have to be obtained through experiments to confirm. Many chemical heavy