比热又叫比热容,是热学中一个重要概念,由于它较密度、电阻等表述物质属性的概念更抽象,相对而言更难于为初中学生所接受。因此,做好有关比热实验成为比热教学中至为关键的问题。实验条件较好的学校,把它改为学生实验,取得了良好效果。据笔者所知,限于实验条件,很多城、乡初中 Specific heat, also known as specific heat capacity, is an important concept in thermal science. Because it is more abstract than the concept of expressing physical properties such as density and resistance, it is relatively difficult to accept for junior high school students. Therefore, doing a good job in specific heat experiments has become a crucial issue in the teaching of specific heat. The school with better experimental conditions changed it to a student experiment and achieved good results. According to the author’s knowledge, many urban and rural junior high schools are limited to experimental conditions.