Independent variable
Question
Which factor is deliberately varied?
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ASleeve color✓ Correct
The student assigns different colors to the sleeves.
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BWater volume✗ Incorrect
The water volume is held alike across bottles.
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CLamp exposure time✗ Incorrect
Each bottle receives the same exposure duration.
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DWater temperature✗ Incorrect
Temperature is the observed outcome.
Rationale
Sleeve color is the factor the student chooses to vary. Temperature is the response, while the stated setup keeps other conditions consistent.
RememberIdentify the chosen difference, the observed response, and the conditions kept consistent.
Sources
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United States
U.S. Environmental Protection Agency · License: US government work (public domain) · Retrieved · Page 21
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Question teas-ssr-00085, version 1
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