- A glass
- Water
- Food colouring
- Bleach
HOW TO DO IT:
- Put some water in the glass.
- Add food colouring.
- Add some bleach.
- Mix it.
PREDICTIONS:
RESULTS:
There is a component in the bleach (sodium hypochlorite) that is a strong oxidant. This means that it takes electrons from other compositions, discolouring them. To sum up, bleach "steals" electrons from food colouring and they can't colour the water anymore.
FOOD COLOURING (electrons)
+
BLEACH (sodium hypochlorite = oxidant)
=
NO COLOUR
I like the experiment because the bleach changed the colour of the food colouring.
BY: Dèlia
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