What materials conduct heat and which do not?
Insulators do not conduct heat and are therefore non-metals.
Metals do conduct heat, and vey well may i add. But, for the
record, you're thinking of electricity. Potatoes conduct heat, and
they're not metals. Anyone who has held a lump in their hand will
tell you that playdough conducts heat, in fact, rather a lot of
other materials conduct heat and water also conduct heat