In prior grades students learned to apply the concept of "energy" in various settings. In grades 9-11 students learn fundamental concepts of energy, including the Law of Conservation of Energy-that the total amount of energy in a closed system is constant. Other key concepts include gravitational potential and kinetic energy, how waves transfer energy, the nature of sound, and the electromagnetic spectrum. Energy concepts are essential for understanding all of the domains of science (EALR 4), from the ways that organisms get energy from their environment, to the energy that drives weather systems and volcanoes.
Energy: Transfer, Transformation, and Conservation