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What is the independent variable?

A student wanted to answer the question, "How does the amount of glycerin affect the size of a bubble blown with soap mixture of water, dish soap and glycerin?". She decided to test the amount of glycerin added to a soap mixture and used 1 drop, 2, drops, 3 drops, and 4 drops. She would add 10 mL of soap to 50 mL of water for each bubble solution. She measured the size (cm) of the bubble produced for each solution.

Question

Chemistry

Gianni Morgan

3 January, 23:17

Brainliest!

What is the independent variable?

A student wanted to answer the question, "How does the amount of glycerin affect the size of a bubble blown with soap mixture of water, dish soap and glycerin?". She decided to test the amount of glycerin added to a soap mixture and used 1 drop, 2, drops, 3 drops, and 4 drops. She would add 10 mL of soap to 50 mL of water for each bubble solution. She measured the size (cm) of the bubble produced for each solution.

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Answers (1)

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Brenda Hayes · Answer 1

Glycerin is the independent variable in this experiment.

Explanation:

An independent variable is defined as the variable that is changed or controlled in a scientific experiment. It represents the cause or reason for an outcome. A change in the independent variable directly causes a change in the dependent variable. The effect on the dependent variable is measured and recorded.

Thus this tells us that glycerin is the independent variable in this case because it is glycerin that causes a change in the size of the bubble that is formed in the soap.