Answer:
The answer is the level of egg above water.
Explanation:
The dependent variable is the variable that depends on something else to change.
The independent variable is the variable that changes. It also makes the dependent variable change.
The controlled variable is the variable that stays the same throughout the experiment.
For example, the independent variable in this experiment is the amount of salt that is added. The dependent variable is how the egg floats, or, in other words, the level of egg above water. The controlled variable is the amount of water in each cup.
