化学是一门以实验为基础的学科。中学化学正是建立在观察实验现象和分析实验结果的基础上。中学化学实验既具有客观、生动、形象的特征，又具有科学研究的缩影；既重视知识的传授，更注重能力的培养。化学实验的特殊性质———实践性、科学性、趣味性、基础性、综合性等，... Chemistry is an experiment-based discipline. Middle school chemistry is based on observing experimental phenomena and analyzing experimental results. The middle school chemistry experiment has the characteristics of objectiveness, vividness, and image, and also has a microcosm of scientific research. It not only pays attention to the teaching of knowledge, but also pays more attention to the cultivation of the ability. The special nature of chemical experiments: practical, scientific, interesting, basic, comprehensive, etc...