Is it an acid, base, or neutral? Make your own acid-base indicator from red cabbage, then test various household substances. Acids and bases are classes of materials that have different properties.

Found with the antacids in most grocery stores and drugstores. † Make red cabbage indicator: Shred 1-2 red cabbage leaves and freeze 1 hour in a zip-close plastic bag. Add 1/3 cup warm water, reseal ...

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 ...

If desired, prepare red cabbage indicator by boiling red cabbage in distilled water and filtering.Provide several prepared reference pH solutions in a lighted test tube rack. Provide appropriate ...

red cabbage and raspberries. Pupils were able to decide whether to dissolve the indicator in ethanol or water and were given the freedom to experiment. Several other attempts, such as indicators from ...