Section outline

  • Success Criteria
    Define what a pH indicator is.
    Describe how altering the pH of a solution can change the colour of a dye.

    Activities
    1) Watch the YouTube video:  
    2) Draw a pH scale from 0-14 into your book and colour them in with the corresponding colours.   Label where acids, bases and neutral is.  Add at least 7 different substances to your pH scale.  For example, label water at pH 7. 

    EXPLORE / TŪHURA

    EXPLORE / TŪHURA learning intentions:

    • We are EXPLORING...traditional Maori garments - the colours and fabrics - to find out how natural resources were used to make them
    • We are EXPLORING... and experimenting with natural dyes