Podcast
Questions and Answers
Why does the sky appear blue during midday?
Why does the sky appear blue during midday?
What happens to sunlight as it reaches Earth's atmosphere?
What happens to sunlight as it reaches Earth's atmosphere?
Why are sunsets red, orange, and pink in color?
Why are sunsets red, orange, and pink in color?
What role do molecule sizes play in the scattering of sunlight?
What role do molecule sizes play in the scattering of sunlight?
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How does the thickness of the atmosphere affect the colors we see during sunset?
How does the thickness of the atmosphere affect the colors we see during sunset?
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Study Notes
Why the Sky is Blue
- At midday, the sky appears blue because of the way light behaves in the Earth's atmosphere
- White light from the sun is made up of all the colors of the rainbow
- When this light reaches the Earth's atmosphere, it is scattered in all directions by molecules
- Blue light is scattered more than other colors because it travels in shorter waves
Why Sunsets are Red, Orange, and Pink
- As the sun is lower in the sky, light has to pass through more of the atmosphere to reach your eyes
- The increased scattering of blue light allows red and yellow light to dominate, making the sun appear red, orange, and pink
- The atmosphere is thicker closer to the Earth, which enhances the scattering effect
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Description
Test your knowledge on why the sky appears blue during midday and why sunsets display red, orange, and pink colors. Learn about how light from the sun is scattered in the Earth's atmosphere and why certain colors are more visible during different times of the day.
