What is rainbow?

A rainbow is like a colorful bridge that appears in the sky after it rains and the sun comes out again.

Imagine you're playing with water in a glass. When light shines through the water, it bends, this is called refraction. In a rainbow, the raindrops act just like tiny glasses full of water. As sunlight passes through them, the light bends and splits into different colors.

Each color travels at a slightly different speed inside the raindrop. This makes them spread out, like when you push a group of toys apart on a floor, each one moves in its own direction. When the light leaves the raindrop, it bends again, and we see the colors as separate lines in the sky.

So next time you see a rainbow, imagine it's like sunlight playing hide-and-seek with raindrops, and you're the lucky one who gets to watch the game!