Testing for starch

Discussion in 'Top Tips' started by Dr.Roo, Sep 27, 2016.

  1. Dr.Roo

    Dr.Roo Enjoying Science, Dresses, Shoes and Rugby.

    In other schools geraniums are kept when testing for starch.
    As we didn't have any geraniums, today we did a straight test using bind weed leaves and results were as expected when iodine was added. Leaves break down easily.

    But if you want to do a comparison between a plant that's been left in the dark for a couple of days then the geranium is the way to go. Bind weed (convovulous) is easier to water during the holidays though.
     
  2. We find the geraniums pretty hardy. They prefer to be dry, we given them a good water before the holidays and they are fine when we come back, even after the 7 weeks of summer this year!
     
  3. 007

    007

    We have plenty of privet bush around the school site which also provides good results :)
     
  4. that is so cool.
     

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