High School

Mr. Henderson would like to know if growing geraniums in direct sunlight affects their growth rate. He divides 8 geranium plants into two groups: one group is kept in total darkness, and the other group is placed in direct sunlight.

Is Mr. Henderson performing an experimental or observational study? Explain.

Answer :

Final answer:

Mr. Henderson is conducting an experimental study, as he manipulates the light conditions and observes the effect on geraniums growth rate.

Explanation:

Mr. Henderson is conducting an experimental study. In an experimental study, the researcher actively manipulates the conditions - in this case, the light exposure - and observes the outcome. Mr. Henderson formed two groups of geranium plants under different conditions: one in total darkness and the other in direct sunlight. He can then compare the growth rates to determine the effect of sunlight on geraniums.

This situation is different from an observational study, where naturally occurring conditions are observed without manipulation. For example, if Mr. Henderson made observations about the growth rates of geraniums placed in different locations around a garden and under varied light conditions, without placing them there himself, that would have been an observational study.

Learn more about Experimental study here:

https://brainly.com/question/30761900

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