Question

alex wanted to find out what toothpaste made teeth the cleanest. everyday she brushed her teeth with a different brand of toothpaste, and then took a plaque test to see measure the amount of plaque left. she used crest, colgate, close - up, and water. what is the dependent variable? amount of plaque water type of toothpaste brushing time

Explanation:

A dependent variable is what is being measured in an experiment. Here, Alex measures the amount of plaque left after brushing with different toothpastes. The amount of plaque depends on the type of toothpaste used.

Answer:

amount of plaque