Density is a measure of (4 points) mass divided by volume weight divided by area volume divided by weight mass divided by area

Density is a measure of mass divided by volume.
density is mass of the substance for a unit volume
 
Density is also referred to as ρ.
A large mass spread over a small volume is said to have a high density. Some substances could have a large mass spread over a very large volume, those are said to have a small density.

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