"Thermal energy" or "heat".

"Thermal energy" or "heat".

"Thermal energy" or "heat".

"Thermal energy" or "heat".

The thermal energy.

The thermal energy.

The thermal energy.

The thermal energy.

There is no particular difference between heat and thermal energy. Heat is a form of thermal energy. Since thermal energy is energy from heat, heat and thermal energy are basically the same thing.

Heat is a transfer of thermal energy.

Most things have thermal energy. Thermal energy is comes from heat and therefore anything that can generate heat has thermal energy. All living things have thermal energy.