A biology class wanted to study the effect of different materials on the melting rate of ice. They placed
pieces of ice, each with a mass of 10g, onto trays. Group 1 was covered in plastic, group 2 was covered in
paper, group 3 was covered in aluminum, and group 4 remained uncovered.
Each piece of ice was allowed to melt for 15 minutes. Then final mass of the ice, minus the melted water,
was recorded at the end of
the experiment.

What is the dependent variable in this experiment?

A)The Type of covering
Material

B)The amount of melting Time

C)The starting mass of the ice

D)The Final mass of the ice