• Question: Why is the grass green

    Asked by 895furk43 to Chris, Joanne, Kathryn, Kieran, Sarah on 10 Nov 2017.
    • Photo: Sarah Guerin

      Sarah Guerin answered on 10 Nov 2017:

      Grass contains a chemical called chlorophyll that gives it its green colour đŸ™‚

    • Photo: Chris Werner

      Chris Werner answered on 10 Nov 2017:

      Yup, simple as that, the same way that carrots are orange! All to do with the pigment called chlorophyll!

    • Photo: Kathryn Schoenrock

      Kathryn Schoenrock answered on 10 Nov 2017:

      True! Plants have pigments that they use to catch light from the sun. They catch it by absorbing it in certain wavelengths but reflect the wavelengths they don’t absorb. It happens that there are no pigments in grass that can absorb the wavelengths that are green (size: 495-570nm) so that is why grass appears green. Black colors absorb every wave length of light (nothing reflects back) which is also why it gets hotter than other colors in the sun (wavelengths=energy=heat). White reflects them all which is why it might appear so bright on a sunny day.

Comments