Scenario:
The head teacher of a certain school of has just bought posho for students to eat which is claimed to be containing some small metallic particles which can be deadly to student's lives. He is confused about what to do with the posho and has already spent the school's money to buy it and cannot return it to the shop.The school has got a long insulated copper wire, switch, a 6-inch iron nail, connecting wires, a battery and iron fillings. The head teacher is advised by the food prefect to call you to come and give a help.
Task:
(a) As a Senior 3 physics learner, help the head teacher on how he can use the available materials to design a prototype simple device that can be used to sort the impurities from the flour.
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