Biology
nickbaganz
1

Yeast and sugar are added to water, the gas produced is captured, and its volume is recorded. Which variables should be held constant during this investigation? i know the answer, just need an explanation as to why

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(1) Answers
lotsotots4

The amount of yeast, sugar and volume of water used - to ensure the results are unbiast. ONE of the things above should be changed, to ensure there are differences that occur, but the other two must be maintained.

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