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Control
Control
If you do not have a control,then you cannot compare your test results.
In a experiment, you would need to compare the results to other results to control.
To be able to compare the results to something.
Control
D) Number 2 because the experiment was repeated and the results were always the same
When doing a controlled experiment, you get accurate results.
Control
The purpose of a control variable in an experiment is to allow the experiment to come out with accurate results. It makes it a lot easier to measure the results when different things aren't affecting it.
If you do not have a control,then you cannot compare your test results.
Having a control in an experiment allows you to see what happens when no variables are changed. If you do not have a control, you do not have anything to compare your results with after changing variables of the experiment.
it is called the control
A scientific control is an experiment or observation designed to minimize the effects of variables other than the single independent variable. This increases the reliability of the results, often through a comparison between control measurements and the other measurements. Yours truly Matthew Kirk
Control
You use a control group to compare the results of the experimental group to. The control group has the "normal" results. After the experiment, you can tell if and what has changed from the control groups results
It is so that the experiment is a fair test. In order to protect the integrity and / or accuracy of the experiment and its results, you have to be able to control all the variables so that you know exactly why something is happening. If you do not control the variables, then one of them could be the reason for the results, and you won't be sure why you got the results you did.