Tea is a natural indicator because it shows the pH of something on a scale however it is very basic as you will not get a full colour range.
The pH of tea is 3-4.
the pH scale
The highest number on the pH scale is 14. The pH scale goes from 0 to 14.
The Ph scale does not have colours.
strawberries are at 3.5 on the pH scale
it is science and it means pH scale
PH of rooibos tea is 6 - 6.5
The scale that chemists use to describe the concentration of hydronium ions in a solution is know as the pH Scale
The midpoint of the pH scale is 7.
The pH scale.
pH Scale