water mass
Hi guys!
I'm trying to find an answer to a simple 'Did U Know' statement.
The statement is 'Did you know: hot water is heavier than cold water?'
Now it's all very well me quoting that to a 10-year old girl & impressing her with my knowledge - what if she says 'Why?'?!?!
My field of scientific interest is relativity & quantum mechanics, so I could explain it by way of the Einsteinian effects of the hot water molecules' increased speed resulting in increased mass, but I somehow suspect that's a teensy bit too complicated!
Any of you brainy people know the answer to this one? Any of you fancy making something up?? As long as it sounds good I don't care!
I'll pop back in now & then & see if anyone's thought of anything.
Thanks![/i]
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