A measure of the average kinetic particles of matter 

(how hot or cold something is)

The kinetic energy of the particles that make up a system and the potential energy stored in the system because of interactions between particles.

Thermal energy that is transferred from one region or substance to another.

Heat transfer caused by the collisions of particles of matter that are in direct contact

The condition in which objects that are touching have the same temperature.

The transfer of energy caused by the circulation of matter due to differences in density

The transfer of energy by light waves

A substance that has a high thermal conductivity

A substance that has a low thermal conductivity