Essentially, a control variable is what is kept the same throughout the experiment, and it is not of primary concern in the experimental outcome. Any change in a control variable in an experiment would invalidate the correlation of dependent variables<span> (DV) to the </span>independent variable<span> (</span>IV<span>), thus skewing the results.</span>
Answer: temperature .
____________________________________________
An astronomical unit is a unit of measurement that scientists use to determine how far something is in space