Visual aid: Let the audience know that the experiment will demonstrate how sin affects a person and how repentance can cleanse the person. Explain that the container of water represents a person with no sin. Squeeze a few drops of food colouring into the water, explaining that the food colouring represents sin. Watch as the food colouring spreads through the water. You can add more colouring to see how the colour darkens and the water gets overtaken by the colour. Explain that the bleach represents repentance. Squeeze a few drops of bleach into the water. Stir the water gently to help the bleach clear the food colouring from the water. (Teaching point: When we come to God in repentance he forgives us and removes our sin.)

Check out: http://www.ehow.com/how_8291483_teach-bleach-food-coloring-water.html

Visual aid: Let the audience know that the experiment will demonstrate how sin affects a person and how repentance can cleanse the person. Explain that the container of water represents a person with no sin. Squeeze a few drops of food colouring into the water, explaining that the food colouring represents sin. Watch as the food colouring spreads through the water. You can add more colouring to see how the colour darkens and the water gets overtaken by the colour. Explain that the bleach represents repentance. Squeeze a few drops of bleach into the water. Stir the water gently to help the bleach clear the food colouring from the water. (Teaching point: When we come to God in repentance he forgives us and removes our sin.)

Check out: http://www.ehow.com/how_8291483_teach-bleach-food-coloring-water.html