化学是一门以实验为基础研究物质运动,物质变化规律的科学。通过实验来培养学生的能力是化学学科的特点。特别是通过课外活动来培养能力和发展智力是重要的途径之一。中学生求知欲望高,潜在智力大,组织他们参加课外活动,对他们进行科学方法的初步训练,可为今后继续学习深造打下一定的基础。 Chemistry is a science that studies the motion of matter and the law of material change on the basis of experiments. The ability to cultivate students through experimentation is a characteristic of chemistry. In particular, through extra-curricular activities to cultivate ability and develop intelligence is one of the important ways. Middle school students have high desire for knowledge and potential intelligence. Organizing them to participate in extra-curricular activities and giving them initial training in scientific methods can lay a solid foundation for further studies.