The total energy of motion in the particles of a substance.

The energy transferred between objects that are at different temperatures.

The direct transfer of heat from one substance to another substance that it is touching.

The transfer of energy by electromagnetic waves.

The transfer of heat by the movement of a fluid.

A material that allows heat and electricity to pass through it.

The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius.

A temperature increase in a body of water that is caused by human activity and that has a harmful effect on water quality and on the ability of that body of water to support life.