Mr Priest's Physics Notes

The mass of a human head is...
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The density of the human body is very similar to water (1g/cm3).
 
This means that if the human head displaces a certain volume of water, the mass of water displaced will be approximately equal to that of the volunteer's head.
 
Here I am working out the mass of my head with some of my Y12 class (05-06) in the background:

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Of course, while the density of the brain is comparable to water, the density of bone is 1.8g/cm3, but I can't find any info on what percentage of the human head is bone.
 
Anyone who has any info on this please let me know!

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