Chet plans an experimental investigation to see how well a new fertilizer works on daisies. The fertilizer must be dissolved in water and delivered to the plants by spraying it onto the leaves and stems. To set up his control group for the experiment, Chet should leave out the air. water. daisies. fertilizer.

Question

Physics

Wyatt Marshall

15 October, 08:31

Chet plans an experimental investigation to see how well a new fertilizer works on daisies. The fertilizer must be dissolved in water and delivered to the plants by spraying it onto the leaves and stems. To set up his control group for the experiment, Chet should leave out the air. water. daisies. fertilizer.

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Reid Benjamin · Answer 1

In order to establish the control group, Chet should leave out the fertilizer.

A control group serves as a datum to which the results of the experiments are compared. In order to establish a control group, the dependent variable, which in this case is the fertilizer added, is removed or kept at a normal level (normally there is no fertilizer supplied to daisies).