Name a type of energy transformation.
One type of energy transformation is the conversion of chemical energy to thermal (heat) energy. This occurs when substances, such as fuel or food, are burned or metabolized, releasing stored chemical energy in the form of heat.
Below is an instruction that describes a task, write a response that appropriately completes the request.

### Instruction:
Name a type of energy transformation.

### Response:
One type of energy transformation is the conversion of chemical energy to thermal (heat) energy. This occurs when substances, such as fuel or food, are burned or metabolized, releasing stored chemical energy in the form of heat.