Lead whye chan's answer to Ang Jane's Primary 5 Science question.

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Lead whye chan
Lead Whye Chan's answer
33 answers (A Helpful Person)
1st
Remember for controlled set up and experimental set up, can only have one difference. So, controlled set up will have roots and experimental set up will not have roots. Other parts of the diagram needs to be same :)
Ang Jane
Ang Jane
6 years ago
Ok,tks