Which is an example of chemical energy being transformed into heat energy?
A. Plants convert energy from the Sun into food.
B. A falling rock heats up as it pushes against the air.
C. A bicycle moves forward when a person pedals it.
D. A campfire roasts a marshmallow that is held over the fire.
As the marshmallow is being roasted, the chemical energy transfers through conduction into heat energy. This is because a chemical reaction has occurred, the marshmallow getting heated.
