Final answer:
A bonfire and a Bunsen burner both release thermal energy and light energy from the chemical reaction of a fuel burning with oxygen, which is fundamental to thermochemistry.
Step-by-step explanation:
The form of energy released by both a bonfire and a Bunsen burner can be characterized as thermal energy and light energy. When a fuel such as wood (in a bonfire) or methane (in a Bunsen burner) is burned, the chemical reaction with oxygen produces carbon dioxide and water, releasing heat and light in the process. This transformation of energy from chemical bonds to heat and light is a fundamental concept in thermochemistry and can be observed in multiple contexts, from campfires to laboratory equipment.