图1图2 图3 要测量固体的密度,需要先测出它的质量和体积.测量质量可用天平.测量形状规则的固体的体积可测量一些长度,用公式计算.测量形状不规则的固体的体积,课本上只举出了密度比水大、不吸水、不溶于水且不与水发生化学反应的固体,如石块,采用浸没排 Figure 1 Figure 2 Figure 3 To measure the density of a solid, first measure its mass and volume. Measure the mass available for the balance. Measure the shape of the solid’s volume to measure some of the length, using a formula to calculate. Measure irregularly shaped solids. In volume, the textbook only lists solids that are denser than water, do not absorb water, are insoluble in water, and do not chemically react with water, such as stones, and they use immersed rows.