Question

clare was using steel to make rusted sculptures. after building each sculpture, she caused the steel to rust by placing the sculpture in a tub filled with salt water and leaving it there for eight hours. clare wondered if the steel would rust faster if she submerged it in vinegar instead of salt water. to find out, she cut ten squares of steel sheet metal and split them into two equal groups. she put one group of squares in a tub filled with salt water and the other in a tub filled with vinegar. once an hour for eight hours, clare counted the number of rusted steel squares in each group. identify the independent variable and dependent variable in this experiment. the number of rusted steel squares the type of liquid used independent variable dependent variable

Explanation:

The independent variable is what the experimenter changes or manipulates. Here, Clare changes the type of liquid (salt - water or vinegar). The dependent variable is what is being measured or observed, which in this case is the number of rusted steel squares.

Answer:

Independent variable: the type of liquid used
Dependent variable: the number of rusted steel squares