3. Identify the independent and dependent variables in each of the following situations. a. The older John gets, the taller he is.

In this scenario, the independent variable is John's age, as it is the factor that influences the change, while the dependent variable is John's height, as it tends to change in response to his age. So, as John ages, we expect to see variations in how tall he is becoming! This concept of independent and dependent variables is super important in understanding cause and effect in experiments. By identifying these, you can design better studies and accurately interpret the results. Just remember: the independent variable is what you manipulate, and the dependent variable is what you measure!