[HPforGrownups] Polyjuice question

[k12listmomma]

No: HPFGUIDX 179802

> At some point, Draco's big mates use polyjuice to change into two tiny
> girls. Where does their extra mass go to?
> Barry


Shelley:
This would be the same question for an animagious: Sirius, a 175 lb guy 
(using a figure just for comparison) turning into a 30 lb dog, or Peter 
Pettigrew, 150 lbs, turning into a 10 lb (at best) rat. The law of 
conservation of mass just doesn't apply to magic. To explain it, you just 
have to say "it's magic!", meaning that magic does not follow the rules that 
the rest of us are used to playing by.