Final answer:
The dependent variable is the mass of salt dissolved in the water at various temperatures. This experiment investigates how the solubility of salt is influenced by temperature changes.
Step-by-step explanation:
The dependent variable in Ms. Bogomolova's experiment to determine the relationship between the temperature of water and the amount of table salt that would dissolve is the mass of salt dissolved in each sample at different temperatures. The temperature of the water (10, 20, 30, and 40 degrees Celsius) is the independent variable that is being changed during the experiment. By changing the temperature and observing the amount of salt dissolved, Ms. Bogomolova is exploring how solubility is affected by temperature changes. It is known that solubility varies with temperature, and for most compounds, heating the solution will allow more of the substance to dissolve.