Nanogirl

19.11.18

Nanogirl

How to introduce simple experiments into the classroom.
Explore pH scale (rainbow section)

Acids or Basics
Use red cabbage juice and add lemon juice = 4 increasingly acidic.
Baking soda + cabbage juice = 11 increasingly Basic.
Work between 3 and 11 on the pH scale.

Boil rice in red cabbage juice and then add sweet and sour sauce and see the colour change.

Polymers
Nappy experiment. Remove the outer layer of nappy and take out the soft lining from inside. Shake in the bag and see all the polymer appear at the bottom of the bag. Take a spoonful of the polymer beads and place in a cup add water and see it absorb and expand in size.

NB: If put down the toilet then add table salt to dissolve it.