Answer:
The water temperature is independent, and the cleanliness of the dishes is dependent.
Step-by-step explanation:
You can change the independent variable in an experiment, in this case it's the water temperature. The dependent variable is the outcome from the independent variable, in this case being the cleanliness of the dishes. You can't control the cleanliness, but you can control the water temperature.
Hope my explanation isn't too confusing, hope this helps.