>But that million kg of ice would not = 1 million litres.
No, of course not. Let's make the calculations, irrelevant though they are. According to my physics book, ice has a density (typical value, I assume) of 917 kg./cu.m., that would be 0.917 kg. per liter. Dividing, the ice block of 1 million kg. wouldhave a density of about 1,090,000 liters.
> 1 kg of WATER takes up 1 Litre of space, AT ROOM TEMPERATURE or thereabouts.
Agreed.
> Ice expands (have you ever left a soda bottle in your freezer, to quickly cool it down, but forgotten about it?!).
Agreed.
> So 1m Kg of ice DISPLACES more than 1 m litres of seawater.
I don't agree with this part. If it were pushed forcefully under water, it would displace water according to its volume. But if it is left to float freely, the ice block would displace exactly the amount of water it weighs.
IOW, the ice block indeed has a volume of 90,000 liters (or litres) more than when it is in the liquid form. But those 90,000 liters are above the surface.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
