why is it necessary to keep all variables constant except the one you are investigating?
Homework Answers
ANS)
Factors have to be held constant so that you may see just what factor caused the change. In the event that you needed more than 1 factor that you just changed, then you would not have the ability to tell which factor affected the experimental outcome you've have. Controlled factors enable you to maintain your results reproducible also, and it is an integral part of designing a more legitimate experiment. Without controlled factors, your experimental findings are useless since they'll be tough to replicate and cannot determine what exactly caused the behaviour you saw from the experiment.
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