Sponge Bob notices that his pal Gary is suffering from slimotosis, which occurs when the shell develops a nasty slime and gives off a horrible odor. His friend Patrick tells him that rubbing seaweed on the shell is the perfect cure, while Sandy says that drinking Dr. Kelp will be a better cure. Sponge Bob decides to test this cure by rubbing Gary with seaweed for 1 week and having him drink Dr. Kelp. After a week of treatment, the slime is gone and Gary’s shell smells better.

(1)What was the initial observation?

(2)What is the independent variable?

(3) What is the dependent variable?

(4) What should Sponge Bob’s conclusion be?

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(1) The initial observation was that Gary's shell was developing a nasty slime and giving off a horrible odor, which is a characteristic of slimotosis.

(2) The independent variable is the type of treatment Sponge Bob applies to Gary. In this case, it is the rubbing of seaweed on Gary's shell and the drinking of Dr. Kelp.

(3) The dependent variable is the condition of Gary's shell, specifically the presence of slime and the odor.

(4) Based on the experiment where Sponge Bob treated Gary's shell with seaweed rubs and Dr. Kelp for a week, and observed that the slime is gone and the shell smells better, Sponge Bob's conclusion should be that both the seaweed rubbing and drinking Dr. Kelp were effective in eliminating the slime and odor associated with slimotosis.