常温下铜为紫红色固体,它的硬度、密度、熔点适中,且具有良好的导电性、导热性和延展性。基于以上原因,铜作为金属材料在生产生活中有着广泛的应用。下面就让我们用铜丝来完成几个趣味实验吧。实验一:铜丝“助燃”如图1所示,在酒精灯灯芯管内插入一节粗铜丝,点燃酒精灯,酒精灯燃烧得比未插铜丝时更旺。 Copper at room temperature as a purple solid, its hardness, density, melting point moderate, and has good electrical conductivity, thermal conductivity and ductility. For these reasons, copper as a metal material in the production and life has a wide range of applications. Let us use copper wire to complete a few interesting experiments below. Experiment 1: Copper wire “Combustion” As shown in Fig. 1, a section of thick copper wire is inserted into the lamp tube of the alcohol lamp, the alcohol lamp is ignited, and the alcohol lamp burns more vigorously than when the copper wire is not inserted.