Today we tried some more experiments from Mr.Q Science. First we made body mucus (aka snot). Mix 1/4 cup of warm water with 3 tablespoons of gelatine. Next add 1/4 cup of glucose syrup (find in the cake making section at Woolworths). You can then add sprinkles of dirt and dust to your snot. The pictures really don't convey just how disgusting this stuff is!
We also did an experiment to show how the kidney works. Place some cornflour mixed with a little water in a sandwich bag and seal. This represents the kidney. Then place the bag into a glass of iodine and warm water (get the iodine at the chemist- brand name Riodine). This represents blood containing waste products. Leave for about 15 minutes. The iodine "waste products" will be filtered out of the "blood" into the "kidney" changing its colour. Water molecules (good blood) are too small to get through he kidney's filter (bag) and are left in the glass.
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