| A | B |
| The metric system | A standard system of measurment used by all scientists. |
| meter | Basic unit of length in the metric system. |
| centimeter | One hundreth of a meter. |
| millimeter | One thousandth of a meter. |
| kilometer | One thousand meters. |
| liter | The basic unit of volume in the metric system. |
| milliliter | One thousandth of a liter. |
| cubic centimeter | A metric unit used to measure the volume of solids; equal to a milliliter. |
| kilogram | A basic unit of mass in the metric system. |
| gram | One thousandth of a kilogram. |
| milligram | One thousandth of a gram. |
| density | A measurement of how much mass is contained in a given volume of an object; mass per unit volume (D=M/V) |
| Celsius | The metric temperature scale on which water freezes at 0* and at 100*. |
| dimensional analysus | The method of conventing one unit to another. |
| conversion factor | The fraction that always equals one, which is used for dimensional analysus. |