SC-566
Scientific inquiry
Lower Sec Science · Secondary 1 · Medium · Scientific inquiry
A student investigates how the concentration of sodium chloride solution affects the rate at which a piece of metal corrodes.
He uses the same size of metal piece each time and measures the time taken for the metal to fully corrode.
What is the independent variable in this experiment?
He uses the same size of metal piece each time and measures the time taken for the metal to fully corrode.
What is the independent variable in this experiment?
- Concentration of sodium chloride solution
- Size of the metal piece
- Time taken for the metal to corrode
- Type of metal used
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