We mixed the purple cooked cabbage juice with white vinegar (acid) and the colour turned pink.
We then mixed in baking soda (alkali) and it turned a greeny colour!
Wednesday, March 14, 2018
Kitchen Chemistry Science!
Citizen scientist Stan Swan helped us with our kitchen chemistry by preparing an experiment to show how red cabbage can be used as an indicator of acid or alkali.
We mixed the purple cooked cabbage juice with white vinegar (acid) and the colour turned pink.
We then mixed in baking soda (alkali) and it turned a greeny colour!
We mixed the purple cooked cabbage juice with white vinegar (acid) and the colour turned pink.
We then mixed in baking soda (alkali) and it turned a greeny colour!
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