一次爸爸拿着两个鸡蛋神秘地对我说:“你能不能不打破鸡蛋就分辨出生熟?”我有点摸不着头脑,不知从何下手. 实践出真知.我决定用实验来辨别生熟鸡蛋.两只蛋外表一样,拿在手中感觉也差不多.我有点失望,怎么办呢?我一急就把鸡蛋在桌上来回滚着玩儿,突然发现两个鸡蛋滚动的速度不同,这是为什么呢? 后来,查阅了资料,问了老师受到启发.接着,我又 One daddy mysteriously told me by holding two eggs: “Can you tell if you’re familiar with the birth without breaking the egg?” I’m a bit puzzled and I don’t know where to start. The practice shows me. I decided to use an experiment to identify raw and cooked eggs. The two eggs look the same and they feel the same in their hands. I’m a bit disappointed. What should I do? I hurried back and forth with eggs on the table. I suddenly noticed that the two eggs were rolling at different speeds. Why was this? Later, after consulting the data, I asked the teacher to be inspired. Then, I