“氨分子的运动”是人教版九年级化学上册第三单元课题1“分子和原子”中的探究实验。从本课题开始,我们将带领学生进入微观化学世界,探索物质构成的奥秘。认识一切物质都是由肉眼看不到的微小粒子构成的。虽然运用现代高科技手段,我们已能直接观察到分子、原子的存在,如教材出示的苯分子和硅原子的图片,已经很有说服力,但对学生来说,如何把微观粒子与宏 “Movement of ammonia molecules ” is the inquiry experiment in the third unit of the ninth grade chemistry of the PEP. Starting from this topic, we will lead students into the micro-chemistry world and explore the mysteries of material composition. Knowing everything is made of tiny particles that the naked eye can not see. Although the use of modern high-tech means, we have been able to directly observe the existence of molecules, atoms, such as teaching materials to produce benzene molecules and silicon images, has been very convincing, but for students, how the microscopic particles and macro