Why does wood float!!!!!?

Question

HELP

Answer 1

It floats not because it WEIGHS less per unit but because its DENSITY is less per unit than that of water.

If it was weight how would ships or bananas float...? ;)

Answer 2

Because it weighs less than the amount of substance (water) it displaces. Or, it has a lower density than water.

Answer 3

It floats because it is lighter than the amount of water that is displaces.

Answer 4

Because it is less dense than water.

Petrified wood does not float though.