The other day we carried out an experiment. The purpose of the activity was to identify the best and most effective way to wash our hands and remove bacteria.
Materials: Cooking oil, ground cinnamon, measuring spoons.
Preparation:
1- Make groups of 3.
2- Each of the 3 children: rub 1 tablespoon of cooking oil over your hands until completely coated.
3- Sprinkle 1 teaspoon of cinnamon (this represents bacteria) on your hands and rub it all around.
Experiment:
Wash your hands by rubbing them briskly for 20”.
Pupil 1: Use old water only.
Pupil 2: Use warm water only.
Pupil 3: Use warm water and soap.
Results:
Let’s compare our hands now.
Warm water and soap is the best solution!
TIP: Don’t use a bar of soap when washing hands because the bacteria stays on it from use to use.
