Light is a form of energy that our eyes can detect. It comes from sources such as the sun, stars, fire, and light bulbs. Light travels in straight lines and can be reflected off surfaces.
There are natural sources of light, like the sun and stars, and artificial sources of light, like light bulbs and flashlights.
Our eyes have a part called the retina which can sense light. When light enters our eyes, it allows us to see the world around us.