Why is the Sky Any Color?

The sky is blue because light from the sun travels through Earth’s air and bounces around tiny particles in the atmosphere.

Imagine you're playing with a flashlight in a room full of tiny balls, like marbles. When you turn on the flashlight, the light hits these marbles and bounces off them in all directions. The same thing happens with sunlight as it passes through Earth’s air. Tiny particles (like dust or water droplets) scatter the light.

Now think about a rainbow, it has many colors: red, orange, yellow, green, blue, indigo, and violet. Each color travels at a different speed when it bounces off these tiny particles. Blue light is scattered more than other colors because it’s smaller and moves faster. That’s why we see the sky as blue most of the time, it's like the blue marbles are bouncing around everywhere!

When the sun is low, like in the morning or evening, the light has to travel through more air, and red and orange get scattered more, that's why the sky looks red or orange then!