Science Experiment Purity of Heart

Watch the video with the class or prepare your demonstration for the class. This experiment can be used in many lessons to illustrate different virtues. Note you should change the labels on the cups to something like impurities and cleaning

THE WATER GOES FROM: PureThen impure Then pure again (symbolizes purifying our heart. ) 

You need: 2 clear cups (one labelled “Impurities” and one labelled with a “cleanse”), food colouring, bleach, baking soda, and water

How you do it: 

  • Fill one glass about 3/4 full of water
  • Stir in 1 tsp of baking soda
  • Add food coloring
  • Next, pour about 1/4 cup of bleach into the coloured water

Note that you can discuss what makes our hearts clouded with impurities and as you are pouring the bleach into the coloured water, ask how are some of the ways we can clean our hearts

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