Friday, January 22, 2010

What would be the experimental and controlled variable in this experiment and why?

In this experiment you have two petri dishes, one with water and one with gibberellic acid. You put 10 radish seeds in each, and record how many germinate over the course of five days. What would be the experimental and controlled variable?What would be the experimental and controlled variable in this experiment and why?
Controlled (independent) variable = presence of gibberellic acid


Experimental (dependent) variable = number of germinations

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