Before transferring the plants into the solutions, we will use a data logger to find out each of the solutions’ pH values, all values will be recorded down in table format. Meanwhile, the initial appearances of the plants will be observed and jotted down as well.
Regarding on the observation of the plants’ appearances, basically we are focusing on the colour of their leaves as well as their roots.
All pH values are recorded down in one decimal point in the table, so that we can observe and compare the results in a more reliable manner.
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