Density is how much mass something has for its volume.
That's very nice of you to offer but I have no need of a sentence with density in it.
A sentence for population density: The population density of Boston, Massachusetts is 13,184 people per square mile. Population density is a noun.
The lab technician measured the density of the liquid.
The density of a substance can be measured in a laboratory.
Let's test the density of that wallboard with this two by four.
the density of the liquid in this glass jar is 5 liter
"The size and density of the rock was such that they were required to use explosives to remove it."
I'm seriously concerned about the sudden increase in the population density of this area.
Foam has a lower density than water, so it floats.
I'm seriously concerned about the sudden increase in the population density of this area.
You can find a rock's density in many different ways. That object has a high density and will not float on water.
The student's report included density-dependent factors that showed how the size of the population varied with the density of that population.