化学是一门以实验为基础的自然科学,化学实验是化学教学中的重要内容,通过实验不仅可激发学生的学习兴趣,而且对于初中学生理解化学概念,形成认真、仔细的观察习惯以及动手能力是十分必要的。特别是条件较差的乡村中学,多做化学实验,可使学生在观察、思考中获得知识、理解原理。现以木炭在氧气中燃烧的实验说明如下。 Chemistry is a natural science based on experiments. Chemical experiments are an important part of chemistry teaching. Through experiments, students can not only stimulate students’ interest in learning, but also help junior high school students understand chemical concepts and form serious, careful observation habits and hands-on skills. It is very necessary. Especially in rural middle schools where conditions are poor, more chemical experiments are conducted to enable students to gain knowledge and understand principles in observation and thinking. The experiment of burning charcoal in oxygen is described below.