Question

question 3. during an experiment, potato cores were placed in different concentrations of salt solutions. which of the following is the dependent variable in this investigation? a. change in mass of the potato core after soaking b. length of the potato core before the experiment c. type of potato used d. concentration of the salt solution

Explanation:

In an experiment, the dependent variable is what is being measured and is affected by the independent variable. Here, potato cores are placed in different salt - solution concentrations (independent variable), and the change in mass of the potato cores after soaking is what is being measured and is thus the dependent variable. The length of the potato core before the experiment, type of potato used, and salt - solution concentration are either constants or independent variables.

Answer:

A. Change in mass of the potato core after soaking