ENERGY

Law of conservation of energy

Mechanical energy

A guy walk in his house and turn on all of his Christmas light's.

Electrical energy

Christmas light get it energy form the circuit. (electrical energy) Because how did the light came on then if you did't blog it in the Christmas light wont come on.

Chemical energy

The circuit get's it's energy for the power lines. outside of there house.

Chemical,Mechanical,and Electrical energy

The power lines get's it's energy for the power planet. first fossil fuels get burn. (chemical energy)

Then it well be burning fuels. (heat) Then that heat Mack the turbines turn. (mechanical energy)

then-> Generator. (electrical energy) then that Mack the heater move.