It doesn’t. Their masses are identical. The just thing that will be different is your volume.

Even if you compressed the feathers until you squeezed every the wait out, they would still be 7 times the volume the the iron. Fluffed out, as they space on a bird or in a pillow, the volume would certainly be also greater still.

You are watching: Compared to the volume of a kilogram of feathers, the volume of a kilogram of lead is


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