Question

complete the sentence. in this experiment, the amount of salt in the water was an independent variable a dependent variable

Explanation:

In an experiment, an independent variable is what the researcher changes or manipulates. Here, the amount of salt in water can be controlled by the experiment - er, making it an independent variable. A dependent variable changes in response to the independent variable. Since the amount of salt is being controlled, it's not a dependent variable.

Answer:

an independent variable