The wood that sinks more in water is more dense.
What is density
Density is defined as mass per unit volume.
When comparing two similar-sized cylinders of different woods, the wood that sinks less in water has smaller mass
Since the volume of the wood is constant (assuming the cylinders are similar in size), the wood with the larger mass will have a higher density.
Therefore, we say that the one that sinks more in water is more dense
complete question
You are analyzing different kinds of wood, and find that similar sized cylinders of different woods submerge in water to different extents. Which of the two woods is more dense?
The one that sinks less in water
The one that sinks more in water