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知识就在我们的身边,只要留心观察,就能学到很多学问。鸡蛋在我们的生活中是再普通不过了,让我们来玩玩它,做些实验,可以获得很多知识。证实大气压的存在实验方法:选一只瓶口直径略小于鸡蛋直径的瓶子,在瓶底撒上一层沙子。将点燃的一团酒精棉投入瓶内,接着把剥去外壳的熟鸡蛋的小头朝下堵住瓶口。这时你会发现蛋被瓶子缓缓“吞”入瓶肚中。
Knowledge is on our side, just watch carefully, you can learn a lot of knowledge. Eggs are no longer commonplace in our lives, let's play with it, do some experiments and gain a lot of knowledge. Confirm the existence of atmospheric pressure Experimental method: Select a bottle diameter slightly smaller than the diameter of the egg bottle, sprinkle a layer of sand in the bottom of the bottle. Put a litter of alcohol cotton into the bottle, and then plug the small end of the cooked egg with the shell up to block the mouth of the bottle. At this moment you will find that the egg is slowly “swallowed” into the bottle by the bottle.