Answer
We can say that wood floats because it is less dense than water, or that a stone sinks because it is more dense than water.
Work Step by Step
It is not accurate to say that wood floats because it is lighter than water, or that a stone sinks because it is heavier than water. We also need to consider the volume of each material.
We can say that wood floats because it is less dense than water, or that a stone sinks because it is more dense than water.
