why is the grass green and the sky blue?

Answer 1

We tried it with Blue Grass and Green Skies a few years ago, but it did not seem to work for the calendar pictures.

Answer 2

These are two distinct questions, with explanations that are unrelated to each other.

Grass is green because it contains chlorophyll. Chlorophyll is a chemical found in virtually all plants, and it is responsible for the green color that they share. Chlorophyll is a green pigment that is vital in the process of photosynthesis, where plants use sunlight to turn water and carbon dioxide into sugar. The reason that chlorophyll is green is that it reflects green light and absorbs all other wavelengths. This is the mechanism by which objects typically appear to have a given color; they reflect light of that color.

The sky is blue due to a phenomenon called Rayleigh scattering. When light encounters particles much smaller than the wavelength of light, the light scatters. Atmospheric gas is an enormous resevoir of such particles. Short wavelengths scatter the most effectively, and blue has a short wavelength, so the blue light scatters and appears to fill the sky. Note that violet has a shorter wavelength than blue, but the human eye is not very good at seeing violet, so blue appears to dominate instead. So note that nothing in sky actually "is" blue, because it's not that blue light is reflected and other wavelengths are absorbed. Blue light is simply scattered, while the others remain indistinguishable as white light.

Answer 3

Molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight...as far as the grass being green it is from the chlorophyl that is present in it....chlorophyl is a green photosynthetic pigment and absorbs most strongly in the blue and red but poorly in the green portions of the electromagnetic spectrum, hence the green color of chlorophyll

Answer 4

The two has nothing to do with each other.

Grass is green due to chlorophyll - the chemical that the grass leaf uses to turn sunlight into energy.

The sky is blue due to the Rayleigh effect - a scattering and refraction of sunlight light as it enters the atmosphere.

Answer 5

grass is green because it's a natural color and sky is blue because of the water's reflection.

Answer 6

It is because of the spectrum of light, grass reflects the green color back and nothing else, thats why wee see it as green

Answer 7

Have you ever thought that the green and blue you see might be red and yellow to someone else? Sounds stupid, but think about it, you will never ever see exactly what someone else is seeing, and if you have grown up to see blue as yellow it will be totally normal to you.

Answer 8

Cos it would look really odd the other way round

Answer 9

refraction of light

Answer 10

This is the way god created it in the beginnig.

Looks rather good i think