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Class 9 Science Exploration: Entering the World of Secondary Science Variables in an experimentMedium

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A student adds different amounts of detergent and measures foam height. Which variable should be controlled?

Answer and explanation

Correct answer: Shaking time

Shaking time may affect foam height so it should be kept the same. In exams control procedure-related variables.

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Shaking-Time Controlled-Variable Foam Variables In An Experiment Exploration: Entering The World Of Secondary Science Exploration Entering The World Of Secondary Science Science Class 9 Mcq

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