medium · Act science
A student dissolved sugar in water and measured how much dissolved at each temperature: 20 C dissolved 200 g per 100 mL; 40 C dissolved 240 g; 60 C dissolved 290 g; 80 C dissolved 360 g.
In this experiment, which is the INDEPENDENT (manipulated) variable?
- The amount of sugar that dissolved per 100 mL
- The water temperature set by the student
- The fixed 100 mL volume of water used each time
- The type of sugar dissolved in the water
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