Why is the sky blue?
The sky appears blue during the day because of the way sunlight is scattered in the Earth’s atmosphere. When sunlight reaches the Earth’s atmosphere, it is made up of different colors of light. The short waves of blue light are scattered in all directions by the gases and particles in the atmosphere, making the sky appear blue to our eyes.
Contents
MCQs
1. Why does the sky appear blue during the day?
A) Because the sun is blue
B) Because of the way sunlight is scattered in the Earth’s atmosphere
C) Because of the clouds in the sky
D) Because of the stars in space
2. Which color of light is scattered the most in the atmosphere, making the sky appear blue?
A) Red
B) Green
C) Blue
D) Yellow
3. What happens to the other colors of light in the atmosphere?
A) They are absorbed by the Earth
B) They are reflected back into space
C) They are scattered in different directions
D) They turn into rainbows
4. Which time of day does the sky appear blue?
A) Sunrise
B) Noon
C) Sunset
D) Midnight
5. What makes the sky appear blue to our eyes?
A) The clouds
B) The stars
C) The scattering of blue light in the atmosphere
D) The reflection of the ocean
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