What are light rays?

Light rays are like tiny messengers that help us see things around us.

Imagine you're playing with a flashlight in a dark room. When you turn it on, you can see the floor, the wall, and maybe even your toy dinosaur. That’s because the flashlight sends out light rays, which travel from the light to your eyes, just like messages going from one friend to another!

Think of light rays as lines that go straight from a light source (like the sun or a lamp) to an object and then into your eyes. They’re not really lines you can touch, but they act like them, moving in straight paths until something gets in their way.

If you put a block between the light and your toy dinosaur, the light rays hit the block and stop. That’s why the dinosaur goes dark on one side, it's not getting any messages from the light anymore!

You can find light rays all around you: when sunlight comes through the window, or when a streetlamp lights up the road at night. They’re like invisible helpers that make everything visible to you!