Lucius Ho's answer to #studygirl's Secondary 1 Science question.

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Lucius Ho
Lucius Ho's answer
21 answers (Tutor Details)
1st
Continuing,

In summary, the point of this experiment is to demostrate how convection current works by using a colored gas (black smoke here) to follow the path of normal air flow, so you can visualize the path of air. As such, what you will see will the smoke is indicated by the red and blue arrows.