Everybody is to take a quilt to drink water, had you seen the cup that can you drink water? Fasten urgent, let me demonstrate to look to everybody.
大家都是拿被子喝水，你见过会喝水的杯子吗？别急，让我来演示给大家看下。
We should plan a dish of water, a candle, a lighter, composition an empty cup. For convenient observation, a bit pigment can be added in the water of dish
我们要准备一个装有水的盘子，一根蜡烛，一个打火机，一个空杯子。为了方便观察，可以在盘子的水中加一点色素
Above all, a candle is put in the dish that has water, ignite the candle again. Next, buckle an empty cup on the candle.
首先，在有水的盘子里放上一根蜡烛，再把蜡烛点燃。然后，把一个空杯子倒扣在蜡烛上。
Next, stirring when arrived. The fire of the candle destroyed, the water level of the cup rose slowly, the cup drank a lot of water!
接下来，激动人心的时候到了。蜡烛的火灭了，杯子的水位慢慢上升了，杯子喝了好多水啦！
What principle is this?
这是什么原理呢？
Father tells me, because the candle burns, extinct the oxygen in the cup, atmospheric pressure is high inside the gas pressure ratio outside the cup, overwhelm water so went in the cup.
爸爸告诉我，因为蜡烛燃烧，耗尽了杯子里的氧气，杯子外面的气压比里面气压高，所以把水压到杯子里去了。
Children, did you know?
小朋友们，你们都知道了吗？