Why is the Ocean Blue?

The video explains why the sky and ocean appear blue. The sky's color is due to Rayleigh scattering, where atmospheric particles scatter blue light more than red. The ocean's blue color results from water molecules absorbing red, orange, yellow, and green wavelengths, leaving blue wavelengths to be reflected. As depth increases, only blue light penetrates, making deep ocean areas appear blue. The video also clarifies why a glass of water looks clear, as it absorbs minimal red light, undetectable by our eyes. Ocean colors can vary due to microorganisms and silt.

What is the phenomenon called that explains why the sky appears blue?

• Mie Scattering

• Rayleigh Scattering

• Tyndall Effect

• Compton Scattering

Why is the common belief that the ocean is blue because it reflects the sky incorrect?

• The ocean absorbs all colors equally.

• The ocean is actually green.

• Water molecules absorb red, orange, yellow, and green wavelengths, leaving blue to be reflected.

• The ocean reflects green light.

What happens to light as it penetrates deeper into the ocean?

• Blue light is absorbed more than other colors.

• Only red light penetrates deeper.

• All colors are absorbed equally.

• The red part of the spectrum is absorbed more, leaving blue light to penetrate deeper.

Why doesn't a glass of water appear blue like the ocean?

• It absorbs a very tiny amount of the red spectrum, undetectable by our eyes.

• It absorbs a significant amount of blue light.

• It reflects all colors equally.

• It is too shallow to reflect any color.

What causes some parts of the ocean to appear green or brown?

• The presence of large fish.

• The reflection of the sky.

• The presence of algae and silt.

• The absorption of blue light.