posted by Cheyenne on .
Homer notices that his shower is covered in a strange green slime. His friend Barney tells him that coconut juice will get rid of the slime. Homer decides to check this out by spraying half of the shower with the coconut juice. He sprays the other half of the shower with water. After 3 days of treatment there is no change in the appearence of the green slime of either side of the shower. what are the dependent and independent variables?