During an experiment, your 'control' group is an unaltered, unchanged sample. For example, when reacting a metal with an acid, you may not react a sample of the metal as your control.
The reason for this is to provide a basis of comparison for your experiment. In other words, it lets you easily compare what happened after the reaction to what the sample was like before. In the earlier example, having a control of the reactant (metal) will allow you to understand the effect the acid had on the metal during and after the reaction.
This also applies to all experiments, not just chemical ones.
Basically it's a frame of reference to show that what happened probably didn't just happen by chance.
a control group means that you dont do anything to it.
To establish a baseline to compare your results to.
To compare data
To establish a baseline to compare your results to.
A control group is the unaffected group in a science experiment.
a control group assures that an experiment will be repeatable
the group that does not change in the experiment VIVI :)
A group that receives no treatment is called the control group. The control group is there to compare the results between a group that has been exposed to diffent conditions, and one that has not.
it acts as a source. a dependent variable that isn't altered by any independent variables.
A test group is the group in an experiment to which the change is being applied and the control group is the same type of group in an experiment to which nothing is done to compare the changes in the test group to.
the answer to that question is the control group has nothing to do with the independent variable because a control group is some thing in your experiment that has not changed through out your experiment. And a independent variable is some thing in your experiment that you change through your experiment(s)
The control experiment allows a standard of comparison for the experimental group
control group
Control and Experiment group is what you would normally have in an experiment