| A | B |
|---|
| density | mass per unit volume; how tightly packed a substance is |
| derived unit | unit of measurement combining two or more other units |
| graph | visual display of information |
| kelvin | SI unit of temperature |
| kilogram | SI unit of mass |
| liter | SI unit of liquid volume |
| mass | measurement of the amount of matter in an object |
| meter | SI unit of length |
| second | SI unit of time |
| SI | International System of Units |
| standard | an exact quantity that all agree to use as a basis for comparison |
| time | the interval between two events |
| volume | the amount of space occupied by an object |
| kilo- | thousand (X 1,000) |
| centi- | hundreth (X 0.01) |
| milli- | thousandth (X 0.001) |
