Lesson 2

Density Conversions

Now, let's move on to the last objective for the lesson and work with density again. You have experience in making the necessary measurements (or you will when you have completed the lab work) and calculating the density of materials. One use of density is to help identify materials. It can also be used to determine the concentration of certain mixtures such as battery acid, antifreeze, urine and blood.

Another use for density is as a conversion factor between mass and volume. It can be used as a conversion factor because it relates the two proportional properties of mass and volume. I should point out that mass and volume are proportional for a given material under given conditions. If you change materials or conditions, such as temperature or pressure, the density will change.