Blue

High school (ages 12+)
Art & Creativity

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/blue

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. Why does the sky look blue during the day?Sunlight hits the air and the tiny air molecules scatter the blue part of the light in all directions. This makes the sky appear blue to our eyes.
2. How did people make blue paint before it was easy?They used a rock called lapis lazuli, which was turned into a pigment called ultramarine. Because the rock was hard to find and move, the paint was very expensive and only used for special pictures.

Rayleigh Scattering: The elastic scattering of light or other electromagnetic radiation by particles much smaller than the wavelength of the radiation.
Circadian Rhythm: A natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.
Ultramarine: A deep blue pigment originally derived from lapis lazuli, now synthesized, known for its brilliance and stability.