| A | B |
|---|
| observation | use of the senses to gather and record information about structures or processes in nature |
| data | recorded observations or items of information |
| inference | logical conclusion based on observations |
| hypothesis | suggested, testable answer to a well-defined scientific question |
| variable | any factor in an experiment that is not constant (any factor that can change) |
| controlled experiment | experiment that tests the effect of a single variable |
| evidence | collected body of data from observations and experiments |
| theory | well-tested explanation that makes sense of a great variety of scientific observations |
| independent variable | variable that the scientist is testing in an experiment |
| dependent variable | variable that gives the results or data from an experiment |
