Monday, 8 December 2014

Poinsettia pH paper

To make the Poinsettia pH paper:

  1. Cut the flower petals (actually specialized leaves called bracts) into strips
  2. Place the strips into a beaker.
  3. Add enough water to cover the plant material and simmer on a hot plate. 
  4. Filter the liquid into another container (such as a shallow petri dish) and discard the plant matter. 
  5. Saturate a piece of filter paper with the poinsettia extract. 
  6. Allow the filter paper to dry and cut the colored paper into test strips. 

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