Standards with the same topic and subject but for other grades
When light is absorbed by a material, most of its energy is changed (transformed) into heat energy. Heat energy can also be produced by electrical and mechanical machines and by one object rubbing against another object.
When light strikes an object, the light can reflect off of its surface or pass into the object. The light that passes into the object can pass through it or be absorbed by the material that makes up the object. Light usually refracts when passing from one material into another.
Recognize that heat energy can come from the burning of wood.
Using the sense of touch, recognize that objects placed in direct sunlight feel warmer than objects in the shade.
Design and implement an investigation to show that white light coming from the sun consists of a variety of component waves that appear to have different colors to our eyes. Record observations of the investigation and use evidence to communicate results.
Observe that light travels in a straight line away from its source until it strikes an object. Observe that when light strikes an object, it can reflect off the object, transmit through the object, be absorbed within the object, or a combination of these phenomena. Give examples of light being reflected, transmitted, and/or absorbed by objects.
Distinguish ultraviolet from infrared light energy. Although each is invisible to the human eye without the use of technology, describe how the presence of each is detected (i.e., night vision goggles to see infrared energy, sunburn indicates ultraviolet).
Identify, as basic forms of energy; light, heat, sound, electrical, and energy of motion.
Energy from the sun includes visible light, which consists of a combination of different colored light, and components that are not visible, which include infrared and ultraviolet light waves.
Observe that electricity can be transformed into heat, light, and sound as well as the energy of motion. Explain that electrical circuits provide a means of transferring electrical energy from sources such as batteries to devices where it is transformed into heat, light, sound, and the energy of motion.