NCES.4.P.3 - Recognize that energy takes various forms that may be grouped based on their interaction with matter.
- NCES.4.P.3.1 - Recognize the basic forms of energy (light, sound, heat, electrical, and magnetic) as the ability to cause motion or create change.
- NCES.4.P.3.2 - Recognize that light travels in a straight line until it strikes an object or travels from one medium to another, and that light can be reflected, refracted, and absorbed.