AskScience: Got Questions? Get Answers.

I’ve been trying to understand why the sky changes colors, and I think I understand most of it, but something in the online explanations doesn’t make it clear for me:

I’ve read:

• sky is blue because blue light gets scattered the most during the day.

• in the evening it turns red because now even more of the blue light gets scattered

So a few questions:

1. The scattering of light during the day: does it mean that blue light gets reflected off air particles and reaches our eyes, while the rest of the frequencies pass through and reach the ground?

2. Surely some of the other frequencies also get scattered during the day, just in much smaller amounts?

3. So during the evening blue light gets scattered even more, to the point where even less of it reaches the eyes?

4. And so it gets red because now we can see the lower frequencies being scattered without blue overshadowing them?

5. Trying to word it myself: during the day only the highest frequencies get filtered, but during the evening also lower frequencies get filtered, because now the “light strainer” (air) is just catching more of it?