A source of light makes light. The Sun and other stars, fires, torches and lamps all make their own light and so are examples of sources of light.
When a television is turned on, it produces light.
Remember! You must never look directly at the Sun. It is so bright that it can damage your eyes very quickly.
Some animals, such as fireflies and glow-worms, are light sources. They make their own light to attract mates.
A mirror is not a source of light. It doesn't make its own light, it just reflects light.
The moon is not a source of light. It reflects light from the Sun.
You would not be able to see a reflector of light, such as a mirror, in a completely dark room.
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