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RideAnS [48]
4 years ago
14

How many variables should you change in a controlled experiment?

Biology
2 answers:
ivann1987 [24]4 years ago
6 0
One at a time so you know what changed it
Llana [10]4 years ago
4 0

Controlled experiments only have one variable to ensure accuracy. If there is more than one variable, it will be difficult to draw precise conclusions.

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