Cup of instant noodles, e.g., Maruchan instant lunch. You pour in the hot water, then wait a few minutes. The water level has gone down. Sure, the noodles have absorbed the water, but shouldn’t the volume basically balance? The water level is significantly reduced after absorption, without the noodles expanding so much that the new level is equal to the level that the cup was initially filled with water.
In: Physics
You assume the noodle is solid. It isn’t. There are air pockets in them. That is where all the water goes. Sure a small amount will escape the cup from being boiled but most is in the noddles.
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