How is thermal energy defined? What are the three ways that thermal energy can be transferred?

Thermal energy means heat energy.

Three ways that thermal energy can be transferred:

Conduction is the transfer of energy from one molecule to another by direct contact.

Convection is the movement of heat by a fluid such as water or air.

Radiation is the transfer of heat by electromagnetic waves.

Explanation:

I learned it when I was in 4th grade.