Question

Rose was using steel to make rusted sculptures. After building each sculpture, she caused the steel in the sculpture to rust by placing it into a tub filled with salt water for eight hours. Rose wondered if steel would rust faster submerged in vinegar instead of salt water.

To find out, Rose cut ten squares of steel sheet metal and split them into two equal groups. She put one group of squares into a tub filled with salt water and the other group of squares into a tub filled with vinegar. Once an hour for eight hours, Rose counted the number of rusted steel squares
in each group.

Which of the following was an independent variable in this experiment?

Answer 1

the type of liquid used

Step-by-step explanation:

It is the variable that Rose is directly controlling