In an experiment, a student dissolves sugar in water at 20 °C, 40 °C and 60 °C and records how much dissolves. What is the independent variable?
Answer and explanation
Correct answer: A. The temperature of the water
- Step 1: The independent variable is the one the student changes on purpose. Step 2. The student changes the temperature. Answer: The temperature of the water. Why not the others: The mass dissolved is the dependent variable; volume and type of sugar are controlled.
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