Colourful indicators from flower petals at the House of Science. Photo: SUPPLIED This week we conclude our home chemistry series with a lovely colourful experiment. The background Acid-base chemistry ...

Discover how red cabbage can act as a natural pH indicator, revealing whether substances are acids or bases through beautiful color changes. pH is a measure that tells us how acidic or basic a ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Take a chunk of red cabbage and whizz it up in a blender with some warm tap water. Pour through a sieve ...

Place 150 mL of water and 100 mL of Milk of Magnesia in a 500 mL beaker. Then add about 10 mL of your universal indicator or cabbage juice. Use the stir plate to start stirring your solution, or you ...

Tear up two leaves of red cabbage and place the pieces in a zip-closing plastic bag. Add about 1 cup of room temperature water. Get as much air out of the bag as you can and close the bag securely ...