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Question
Why is it important to cut the two potato pieces in roughly equal size and measure their initial weight before placing them in different liquids?
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Solution
Since both potato pieces begin with a comparable surface area and volume, cutting them to nearly equal size guarantees a fair comparison. In this manner, any variation in the outcome is related to the various liquids (the variable under test) rather than variations in the individual pieces.
A baseline reference is obtained by measuring the beginning weight. It is possible to determine whether water has entered or left the cells through osmosis by precisely calculating the change in weight (increase or decrease) between the starting and final weights. As a result, the experiment is controlled, and the findings are trustworthy.
