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. Sponge Bob decides to test this cure by rubbing Gary with seaweed for 1 week. After a week of treatment, the slime is gone and Gary’s shell smells better. What is the dependent variable in this experiment?
1. A scientific hypothesis must be falsifiable (d)
2. Observation (c)
3. Hypothesis: The more salt added into the water, the density of the water will be increased because salt weighs more than water. Therefore, the water will have a lower freezing point. Independent: the difference in each cup is the amount of salt added to the water.
answer; /// i do believe the correct answer is (