1. LS - Control Qn II
2. PS - Forces II
Learning Point(s) for LS-Control Qn II
i. A control set-up is to compare (the variable that is being tested) and confirm (that any changes is due to the tested or independent variable)
In the above qn, the control is used to compare the height of the water in test tube so as to confirm that any changes in amount of bubbles produce/ rate of photosynthesis is due to the colour of light.
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