| A | B |
|---|
| qualitative | concerning the kinds of matter present |
| quantitative | concerning the amounts of matter present |
| weight | the gravitational attraction of Earth or a celestial body for matter |
| mass | measure of the amount of matter |
| kilogram | the SI unit of math |
| balance | an instrument used to measure mass |
| length | the distance between two points |
| meter | the SI unit of length |
| time | the interval between two occurances |
| second | the SI unit of time |
| temperature | a measure of the average kinetic energy of the particles composing a material |
| kelvin | the SI unit of temperature; 1/273.16 of the interval between absolute zero and 273.16 equal to the triple point of water |
| accuracy | the relationship between the graduations on a measuring device and the actual standard for the quanity being measured |
| precision | the measure of the reproducibility of the measurements within a set |
| significant digit | the reliable digits in a measurement based on the accuracy of the measuring instrument |
| counting number | natural number; any cardinal number except zero |
| density | mass per unit volume |
