| A | B |
|---|
| Experimental variable | an aspect of an experiment that changes during the course of the experiment |
| Control (of an experiment) | the variable or part of the experiment to which all others will be compared |
| Blind experiments | experiments in which the participants do not know whether or not they are a part of the control group |
| Double-blind experiments | Experiments in which neither the participants nor the people analyzing the results know who is in the control group |
| Surface tension | a thin film that stretches across the surface of every liquid |
| Placebo | fake pills |
| Subjective data | data that depends to some extent on the opinions of people |
| Objective data | data that can not be affected by opinions of people |
| X-axis | the horizontal scale on a graph |
| Y-axis | the vertical scale on a graph |
