Pūtaiao

waikura

rust

tūingoa, tūmahi poro

WHAKAMĀRAMA

Ko te hua o te tauhohe ina pāngia te rino (Fe) ki te hāora (O) me te wai (H2O). Ka kainga te rino, ka memeha, ā, ko te hāura te tae ka hua ake.

The result of the chemical reaction when iron is in the presence of oxygen and water. The iron is eaten away becoming weak, resulting in a reddish-brown colour.

Tauira KŌrero

He aha i waikura ai tēnā wāhanga o tō pahikara?

Tuhia te whārite o te tauhohe matū hei whakaata i te waikuratanga o te rino.

Ki te kore te rino e pāngia ki te hāora me te wai, e kore e waikura.

WhakamĀrama Āpitihanga

Ko ngā huarahi matua e tiakina ai tētahi konganuku kia kore ai e waikura:

  • mā te peita
  • mā te uwhi ki te kirihou
  • mā te ārai waikura
  • mā te koranu
  • mā te pani ki te hinu.

Tauira KŌrero

He aha i waikura ai tēnā wāhanga o tō pahikara?

Tuhia te whārite o te tauhohe matū hei whakaata i te waikuratanga o te rino.

Ki te kore te rino e pāngia ki te hāora me te wai, e kore e waikura.

WhakamĀrama Āpitihanga