☁️Look up on a sunny day. The sky is blue. Why?

🌈Sunlight looks white. It has red, blue and more in it.

Light comes in waves. Blue waves are short.

Red waves are long.

There are tiny bits in the sky. We can not see them.

☀️The bits bump sunlight all over.

Blue gets bumped the most. So the sky looks blue.

☀️At sunset the Sun is low. Its light has far to go.

Then the sky turns orange and red.

☀️Never look at the Sun. Dark sunglasses are not safe.

Words to know

• waves: how light goes
• sunset: end of day