| A | B |
| Length | The distance between to point.s (meters) |
| Volume | The amount of space something takes up. |
| Mass | Amount of matter in an object (grams). |
| Density | How much mass in a given space (mass÷volume). |
| Graduated cylinder | An instrument used to accurately measure volume. |
| Meniscus | The curve formed by water when in a small container. |
| System International | Metric system of measurement. |
| Precision | How close the values are to each other. |
| Accuracy | How close the measured value is to the true value. |
| Mean | The average of a set of numbers. |
| Range | The difference between the greatest and the least values. |