《科学小实验130例》上有这样一个实验“瓶口上的冰柱”：冬天，在傍晚把一个注满水的墨水瓶敞着口放到室外，第二天早晨瓶口就会出现一个冰柱。原理：冰的密度小于水的密度，同质量的水结冰后体积增大。这个实验我做了多次，第二天早晨看到的都是：瓶子碎了，剩下的是与瓶子内 One of the experiments, “Icicles on a Bottle Cap,” was included in “The Science Experiment, 130.” In winter, an open bottle of water-filled ink bottle was left open for the evening, and an ice appeared in the bottle the next morning column. Principle: The density of ice is less than the density of water, the volume of water increases with the same amount of water. I did this experiment many times, the next morning I saw: the bottle was broken, and the rest was with the bottle