Understanding Why the Sky is Blue and Red

Why did many ancient cultures not have a word for the color blue?

• They believed blue was a shade of green.

• Blue was not a common color in nature.

• They could not see the color blue.

• Blue was one of the last colors to be named in languages.

What was the incorrect belief about why the sky is blue?

• The sky is blue because of the Earth's magnetic field.

• The sky is blue because of the presence of blue gases.

• The sky is blue because of the scattering of light.

• The sky is blue because of the ocean's reflection.

What determines how much light is scattered by air molecules?

• The speed of light

• The distance from the sun

• The wavelength of the light

• The temperature of the atmosphere

Why does the sky appear blue instead of violet, even though violet light is scattered more?

• Violet light is absorbed by the atmosphere.

• Our eyes are more sensitive to blue light.

• Violet light is blocked by the ozone layer.

• Blue light travels faster than violet light.

Why do we see red and orange colors during sunrise and sunset?

• The sun emits more red and orange light at these times.

• The atmosphere filters out all colors except red and orange.

• Light travels through more atmosphere, scattering shorter wavelengths.

• The Earth's rotation changes the color of the sky.