拿一个大一点儿的玻璃杯,盛上多半杯清水,然后放入一个新鲜鸡蛋,鸡蛋便沉到了杯底。这时,你再找一大把盐加入水内,用筷子轻轻搅拌一下,当盐加到一定程度时,看!鸡蛋自己浮起来了,跑到水面上去了。在做实验的时候,如果把盐加到不多不少,还会出现一个很少见到的情况:鸡蛋可以在盐水的任何一个位置呆住,不浮也不沉。当然,要把实验做到这样恰到好处,可不太容易。 Take a bigger glass, fill up with more than one glass of clear water, then put a fresh egg and the egg will sink to the bottom of the cup. At this time, you will find a large amount of salt in the water and stir gently with chopsticks. When the salt is added to a certain degree, look! The egg itself floats and goes to the surface of the water. In the experiment, if you add salt to a small amount, there will be a rarely seen situation: eggs can stay in any position of salt water, neither floating nor sinking. Of course, it’s not easy to experiment with just this way.