* Batteries: Batteries store chemical energy in the form of chemical compounds. When a circuit is complete, a chemical reaction occurs, releasing electrons that create an electrical current.

* Food: The carbohydrates, fats, and proteins we eat contain chemical bonds that store energy. Our bodies break these bonds down through digestion, releasing the energy to fuel our activities.

* Fossil fuels (coal, oil, natural gas): These fuels are formed over millions of years from the remains of ancient organisms. The chemical bonds within these fuels store energy that is released when burned.

* Wood: Similar to fossil fuels, wood stores chemical energy in the form of cellulose and other compounds. When burned, the energy is released as heat and light.

* Biofuels: These fuels are derived from organic matter like plants and algae. They store chemical energy through photosynthesis, which converts sunlight into chemical energy.

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