Here's why:

* Chemical energy is the energy stored in the bonds between atoms and molecules.

* When these bonds are broken (like in a chemical reaction), energy is released.

* When new bonds are formed, energy is stored.

Examples:

* Food: The carbohydrates, fats, and proteins in our food contain chemical energy. When we eat, our bodies break down these molecules to release energy for our cells.

* Fossil fuels: Coal, oil, and natural gas store chemical energy from ancient plant and animal matter. Burning these fuels releases energy in the form of heat and light.

* Batteries: Batteries store chemical energy in the form of chemical compounds. When the battery is used, a chemical reaction releases energy to power a device.

Let me know if you'd like more details on any of these examples!