BI-966
Improving experiments
Biology · Secondary 3 · Medium · Improving experiments
A student investigates osmosis using identical beetroot cubes placed in different concentrations of salt solution.
Which change in the set-up would most directly reduce random experimental error in the results?
Which change in the set-up would most directly reduce random experimental error in the results?
- Use more beetroot cubes at each concentration and calculate the mean.
- Use a different plant tissue instead of beetroot.
- Increase the range of salt concentrations used.
- Leave the cubes in the solution for a much longer time.
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