This is a flashlight. It produces light. The flashlight has batteries. What makes the light in a flashlight?

Light is an energy. It lets us see the world around us. Which things make light? In science at school you will have found out about sources of light. Some sources are very big, like the Sun. Some are very small, like glow worms. Lots of other things don’t make their own light - they just reflect light. Mirrors reflect light. The Moon reflects the light of the Sun.