Question

the passage below describes an experiment. read the passage and then follow the instructions. kimi 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. kimi wondered if steel would rust faster submerged in vinegar instead of salt water. to find out, kimi 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, kimi counted the number of rusted steel squares in each group. complete the sentence. in this experiment, the number of rusted steel squares was a dependent variable an independent variable

Explanation:

The dependent variable is what is being measured or observed in an experiment. Here, Kimi is observing the number of rusted steel squares, which depends on the type of liquid (salt - water or vinegar). The independent variable is the factor that is changed (type of liquid). So, the number of rusted steel squares is the dependent variable.

Answer:

a dependent variable