The wagon will accelerate at a faster pace. Since the wagon is lighter than the go kart, the same force will have a stronger effect
The metallic pan iis most likely going to be used on a stove.
The stove is heating something, and the conductive metallic pan will, well, conduct that heat throughout the entire body of the pan. Doing this will spread the heat to the handle, burning your hands.
Both wood and plastic are insulators, and they do not conduct heat or electricity. They will insulate your hands and protect them from the heat.
7=cells
9= The Central Nervous system
10= not sure
