Please help!!!If i had fertilizer in one plant and not the other, whats the 2nd plant, Control or dependant variable?
If your are testing the hypothesis that fertilizer impacts the plant's growth then the control is the zero point or no fertilizer.
The dependent value is the answer to the question posed in your hypothesis, the plants growth.
While the independent variable is the various amounts of fertilizer used. The independent answers the question of what is changed in each pot?
All other variables should be accounted for by being consistent for each plant so they do not play a part in what is changed between the plants.
http://www.absoluteastronomy.com/topics/鈥?/a>
http://en.wikipedia.org/wiki/Dependent_a鈥?/a>
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