| A | B |
|---|
| hypothesis | an educated guess |
| qualitative observation | observations made using one's senses |
| quantitative observation | observations made by counting or measuring |
| variable | any component of the experiment that could be altered |
| independent variable | the variable that is purposely changed by the experimenter |
| dependent variable | the variable that is affected by a change in the independent variable |
| replicate | a repeat or copy of the sample/experiment |
| control | an object that does not undergo changes in the independent variable in order to demonstrate "normal" conditions |
