For numbers 5 and 6:

You tried to investigate how fast powdered juice dissolves in cold and in hot water.
I. The temperature of water.
II. The amount of powdered juice that completely dissolves in hot water.
III. The amount of powdered juice that completely dissolves in cold water.
IV. The length of time it takes for the powdered juice to completely dissolves.

5. What is the dependent variable?
A. I only B. I, II and III C. II and III D. II, III and IV

6. What is the independent variable in the investigation?
A. I only B. I, II and III C. II and III D. II, III and IV
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