Awood block, 22.00 cm x 13.20 cm x 4.400 cm, has a mass of 1600.0 g. the density of the wood in si units is:

The density of a substance is calculated by dividing its mass by its volume. The SI units of density are kg/m³.
The volume is 22 × 13.2  × 4.4  = 1277.76 cm³
The mass is 1600 g and therefore the density is 1600/1277.76 = 1.2522 g/cm³
But the SI units are kg/m³, hence we convert g/cm³ to kg/m³
1g/cm³= 1000kg/m³
thus, 1.2522 ×1000 = 1252.2 kg/m³
Therefore,the density = 1252.2 kg/m³

It shows that the experiment is designed properly.