| A | B |
| meter | used for length/distance measurements |
| liter | used for volume measurements |
| gram | used for mass measurements |
| volume | the amount of space that an object occupies |
| mass | the amount of matter that an object has |
| density | is the relationship of mass to volume; how much mass in a unit of volume |
| density | is an important physical property of matter |
| density | identifies matter because each type of matter has it's own density |
| formula for density | mass÷volume |
| density of water | 1.oo g/mL |