Make an acid-base indicator. Dr Yan uses some very colourful science to find out what's acidic in his kitchen. Take 1/4 red cabbage. Finely slice the cabbage. Put all the chopped-up cabbage into a ...
Nordot on MSN
UK gardeners are ditching plastic pH strips for this eco-friendly kitchen scrap that instantly reveals soil pH
In a British back garden, a leftover red cabbage can rival pricey pH kits. This simple colour trick shows whether your soil ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results