As physicists, we have been learning about light in our unit Light Up Your World.
By the end of this unit, we will:
Know that animals, including humans, see light sources when light travels from the source into their eyes
Know that animals, including humans, see objects when light is reflected off that object and enters their eyes
Know that light reflects off all objects (unless they are black). Non shiny surfaces scatter the light, so we do not see the beam.
Know that light travels in straight lines