Question

identifying variables: part iii
the variables for this experiment include mass, volume and the materials in the various balls, as well as their densities. in part iii, you will be investigating the questionable baseball. use the drop - down menus to complete the sentences and identify the independent and dependent variables.
in part iii, the independent variable, the one that is intentionally manipulated, is
in part iii, the dependent variable, the one that you measure the response in, is
options: mass, volume, material, density

Explanation:

In an experiment, the independent variable is what is changed or manipulated. Here, the material of the baseball (since it's the questionable baseball and we might be changing its material composition) is what we intentionally manipulate. The dependent variable is what is measured as a result of the change in the independent variable. Density is calculated from mass and volume (\(density=\frac{mass}{volume}\)), and if we change the material (independent variable), the density (which we measure based on the mass and volume changes due to material) is the dependent variable.

Answer:

Independent variable: material; Dependent variable: density