5)A poker used in a fireplace is held at one end while the other end is in the fire. Why ar pokers made of iron rather than copper? Ignoring the fact that iron may be cheaper and stronger.
--Is it because the bonds of the molecule in the Iron are held more tightly than the copper?
6)One car has a metal body while another has a plastic body. On a cold winter day these cars are parked side by side. If you put a bare han don each car the l body feels colder. Why?
7)To keep your hands as warm as possible during skiing should you wear mittens or gloves? Give a reason for your answer.
--I
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