The part that does not change during an experiment
The Scientific Guess
The part of the experiment for comparison with other trials of the experiment
A test sample or the group that receives an experimental procedure
The part of the experiment for comparison with other trials of the experiment
A control in an experiment is the part of the experiment that serves as a baseline for comparison with other trials of the experiment. It is typically a test sample or a group that does not receive the experimental procedure or treatment. The purpose of including a control is to provide a standard against which the experimental results can be compared. The control is important because it allows scientists to determine the effect of the experimental procedure or treatment by comparing it to a known condition or standard.
