Question

identify the independent variable
a pet store owner wants to see what will happen if they feed tanks of goldfish different amounts of food. one tank of goldfish is fed the normal amount which is once a day, a second tank is fed twice a day, and a third tank is fed four times a day during a six - week study. the fishes’ body fat is recorded daily.

Explanation:

Step1: Identify Independent Variable

The independent variable is what's manipulated in an experiment. Here, the feeding frequency (once, twice, four times a day) is changed.

Step2: Confirm the Variable

The experimenter controls how often the goldfish are fed (feeding frequency), so this is the independent variable.

Answer:

The independent variable is the number of times the goldfish are fed per day (feeding frequency: once a day, twice a day, four times a day).