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Umnica [9.8K]
3 years ago
15

How many variables should you have in a control experiment?

Biology
2 answers:
Alexus [3.1K]3 years ago
6 0
It depends on the case, but usually two variables should be in a controlled experiment.
wariber [46]3 years ago
4 0
You should do three variables so you can note the difference
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    Hope i helped. Have a nice day. 
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