Steel Don’t Float!

So here I am
On this great big boat,
But it’s made of steel …!
And steel don’t float!

Call the captain!
Tell the mate!
S.O.S.
Before it’s too late!

No doubt about it,
This boat’s going down,
‘Cause steel don’t float.
We’re all gonna drown!

Those engineers,
They just don’t think.
A boat of steel
Is bound to sink.

Does a cannonball float?
Or a 50 pence?
Metals always sink,
It’s only sense.

So here I am
On this great big boat,
And it’s made of steel …
… So how does it float?

An object will float if it is lighter than water or, more correctly, if its density is less than that of water. Although steel is much heavier than water a steel boat, because of its shape, also contains air so that the ‘density’ of the boat, as it pushes down on the water, is less than that of water, and the boat will float.