Why Does the Sky Look Blue?

Look up on a clear day.

The sky often looks blue.

But the sky has no paint.

Sunlight looks white to our eyes.

It is made of many colours.

Light travels from the Sun to Earth.

On the way, it passes through the air.

The air is full of tiny bits.

These bits send some light in different directions.

Blue light spreads more than many other colours.

So blue light comes to us from all across the sky.

That is why the sky looks blue.

Clouds can make the sky look grey or white.

At sunset, the sky can look red or orange.

The sky can show many beautiful colours.