Knowledge and Skills Statement
Energy manifests in multiple phenomena such as motion, light, sound, electrical and magnetic fields, and thermal energy. Energy can be modeled as either motions of particles or as stored in force fields (electric, magnetic, gravitational) that mediate interactions between particles. The total amount of energy in a system does not change, but it can be transferred between objects within the system.
Research
Kolb, Jennifer. “Hunting for Energy.” Science and Children 47, no. 4 (December 2009): 42–44. http://www.jstor.org/stable/43174677.
Summary: The article "Hunting for Energy" explores and highlights a variety of energy transfers. "Science 101" provides support for understanding that as energy transfers, it may appear that energy is not conserved; however, some energy transfers out of the system through heat and other degraded forms.