Ka whakamahia te āwhata pH hei tohu i te kaha o te waikawa, o te pāpāhua rānei o tētahi matū. Ko te 0 hei tohu i te waikawa tino kaha. Ko te 7 kei waenganui o te āwhata, arā, he ngū te matū (pērā i te wai māori). Ko te 14 hei tohu i te pāpāhua tino kaha.
The pH scale is used to show the acidity or alkalinity of a substance. Zero indicates a very strong acid. Seven is in the middle of the scale indicating the substance is neutral (such as water). Fourteen indicates a strong alkali.
He aha te tau o te āwhata pH hei tohu waikawa tino kaha?
Rangahautia ngā momo tohu hei whakaatu i te āwhata pH.
Kei te takiwā o te toru i te āwhata pH te waikawa winika.
