Why is the dependent variable of the experiment the rate of the evaporation that occurred in each beaker and not the room in which beakers were stored
The dependent variable of the experiment is the rate of evaporation that occurred in each beaker because the aim of the experiment is to investigate and compare the evaporation rates in different conditions or environments. By measuring the rate of evaporation in each beaker, the researchers can determine how different factors or variables (e.g., temperature, humidity, etc.) affect the evaporation process.
On the other hand, the room in which the beakers are stored is not the dependent variable because it is not directly being manipulated or controlled in the experiment. The researchers may choose a specific room or environment to conduct the experiment, but it is not the main focus of the study. Instead, they are interested in observing and analyzing the evaporation rates in the different beakers, which are under different conditions and variables that they intentionally set and control.