Floral litmus solutions
In physical science laboratory thirteen the students use floral litmus solutions to determine whether household substances are acids, bases, or neutral. Mandylae pours hot water into her flowers with Iva Nicole and Mayleen Route in the back left The students bring in flowers. I do not provide guidance as to which flowers to bring in, there is no simple predictor for which flowers will work in any given term or at a particular time of day. Some flowers work better latter in the day (Hibiscus tiliaceus) while others work some terms and other terms do not work (Sphagneticola trilobata). Spathoglottis plicata tends to be reliable if freshly picked. And some flowers do not produce any pigment (Ixora casei, Saraca asoka). Anjannette and Tristan test bleach while Regina Pelep looks on Each floral litmus solution is first tests against a known acid (local lime fruit, karer tik this term) and a known base (baking soda) to determine whether the flower can detect acids and bases. T...