| observations | senses | instruments |
| measurement | inferences | classification |
| property | matter/substance | expand/contract |
| freeze/melt | phase | interface |
| cyclical change | non-cyclical change | equilibrium |
| dynamic equilibrium | pollutants | powers of ten |
| percent deviation (percent error) | independent variable | dependent variable |
| bar graph | pie chart | direct relationship |
| inverse relationship |
