what is heat conduction??

Answer 1

Movement of heat from one place (where the temperature is hotter) to another place (where the temp. is colder), through solid objects.

This is in contrast to the other 2 methods that heat moves: convection and radiation. Convection is similar to conduction, in that the heat moves through matter, only in convection, the matter isn't solid, it's gas.

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Answer 2

Heat conduction or thermal conduction is the spontaneous transfer of thermal energy through matter, from a region of higher temperature to a region of lower temperature, and hence acts to even out temperature differences.