Why is the Sky Blue? - Sky Color Explained

The video explores why the sky appears blue and why sunsets show red, orange, or pink hues. It explains that sunlight is a spectrum of colors, each with different wavelengths. Blue light is scattered by atmospheric gases, making the sky appear blue. During sunset, the sun's light travels through more atmosphere, scattering shorter wavelengths and allowing longer wavelengths like red and orange to dominate, creating vibrant sunset colors.

What is the relationship between color and wavelength in the spectrum of sunlight?

• Blue has the longest wavelength, and green has the shortest.

• Red has the longest wavelength, and violet has the shortest.

• All colors have the same wavelength.

• Red has the shortest wavelength, and violet has the longest.

Why does the sky appear blue during the day?

• Because blue light is reflected by the ocean.

• Because blue light is absorbed by the atmosphere.

• Because blue light is scattered by gas molecules in the atmosphere.

• Because the sun emits only blue light.

What happens to sunlight as it travels through the atmosphere?

• It gets scattered by gas molecules.

• It changes color to green.

• It travels in a straight line without any change.

• It gets absorbed by the ground.

Why do we see red and orange colors at sunset?

• Because the Earth's rotation changes the color of the light.

• Because the longer wavelengths of red and orange dominate after shorter wavelengths are scattered.

• Because the atmosphere absorbs all other colors.

• Because the sun emits more red and orange light in the evening.

What causes the variety of colors seen at sunset?

• The sun's position and the scattering of shorter wavelengths.

• The reflection of light from the ocean.

• The absorption of light by clouds.

• The emission of different colors by the sun.