Physical and Life Science - FOOD AND ENERGY: Animal and Plant Energy

Energy exists in many forms and is constantly being transferred between forms. All energy types can be sorted into two main categories: potential and kinetic. Potential energy is stored energy. Chemical energy, nuclear energy, stored mechanical energy, and gravitational energy are all examples of potential energy. Kinetic energy is the energy of motion. Radiant (light) energy, thermal energy, sound energy, and electrical energy are all examples of kinetic energy. Energy cannot be created or destroyed, only transferred between the types of energy. Most energy we use on Earth stems from the nuclear energy from within the sun