Yes, it is possible but the natural sponge is expensive; artificial sponge is frequently used as heat insulator.
Yes, because of the voids (air spaces).
We insulate lofts because heat rises, so if you dont insulate the loft all the heat will escape. So if you put the heating on, and your loft is insulated, the heat will rise but stay in and not escape.
No. Metals are good conductors of heat.
They would normally insulate the table from the heat of the plate, otherwise there isn't much point having them!
insulate heat
yes, if you believe
A sponge definitely does have the ability to absorb heat. Sponges absorb heat as well as many other things like water.
because it is not made of plastic or metal.
foam has better heat retention
A normal plastic cup.
They are poor conductors
yes and no it depends on what wool and what you want to insulate ?