Monday 22 September 2014

Why Do Leaves Change Colour?

It’s the first day of autumn and the telltale signs are here: unstable weather, rain and wind,  and most importantly, the leaves are changing colors. Ever wonder why some leaves turn red, others yellow and some just turn brown? It's all down to chlorophyll (more like bore-ophyll!) and the glucose stored inside trees that help reveal the reds, yellows and, less excitingly, browns of fall foliage. 
Learn some more Science and Chemistry with this wonderful video:

3 comments:

  1. The video is interesting, it has beautiful pictures and useful information. I think the images and comments are very fast and sometimes difficult to understand, however
    I think I understood the essence of this video.

    ReplyDelete
    Replies
    1. You're absolutely right, João!
      All is too fast, but you can always stop it whenever you need to and there's the option of subtitles... in English, making it easier for all to follow.
      If you put your cursor on the right icons below the video, one of them allows you to activate subtitles - I'll show you which and how to do it in class, ok?
      Anyway, I'm glad you got the essence of the video :)

      Delete
  2. An interesting response, each flower has a wonderful color, which is obtained in the autumn.

    ReplyDelete