Place a pyrex glass funnel with its mouth down in a saucepan full of water, in such a way that the stem tube of the funnel is above the water or pointing upwards into air. Rest the edge of the bottom portion of the funnel on a nail or a coin so that water can get under it. Place the pan on the stove and heat it till it began to boil. Where do the bubble form first?. Why?

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Answers

2015-06-28T19:11:11+05:30
It form inside of pyrex glass tube
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