What would be your casual definition for control variable?

For science. I already have one but its just for control.. but i think its the same thing.... here it is,


"The one part of the experiment that everything else is compared to"


is that right!?|||That's a reasonable casual definition. Another is, "The one part of the experiment that controls the outcome."|||In any experiment, you typically have multiple variables in play. In order to determine the behavior of what your are studying, you will keep some variables constant while you vary the other(s). Those variables you keep constant are the control variables.