In an experiment about how air temperature affects the amount of time it takes crocuses flowers to bloom, three crocus plants that had not yet bloomed were placed in three greenhouses with different temperatures.
What is the outcome variable (dependent variable) in this experiment?
the number of crocuses used
the amount of time it takes the crocuses to bloom
the air temperature
the greenhouses
The outcome variable (dependent variable) in this experiment is the amount of time it takes the crocuses to bloom. This is because the experiment is measuring how changes in air temperature (the independent variable) affect the time it takes for the crocuses to bloom, which is the observed outcome. The other options are either constants or independent variables in this context.