juarezkarla23
juarezkarla23 juarezkarla23
  • 02-06-2014
  • Biology
Answered

how many variables should you have in a control experiment?



Answer :

mandi17 mandi17
  • 02-06-2014
It depends on the case, but usually two variables should be in a controlled experiment.
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minnomurtza minnomurtza
  • 03-06-2014
you should do three variables so you can note the difference
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