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4.4 Making Homemade Soap

Agriculture · Grade 7 · 8 lessons in the design

What this covers

  • Forms of soap at household level: liquid, cake/bar, paste, powder
  • Natural ingredients: ashes, salt, water, animal fats, plant oils
  • Safety with lye from ash leach (alkali)
  • Making homemade soap and using it to clean

What you will be able to do

  • identify the forms of soap used at the household level
  • make homemade soap using natural ingredients
  • embrace homemade soap for household use

Key questions

“How can we make soap using natural ingredients?”

Lessons

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  1. Forms of household soap
    40 min · 1 practice tasks · quiz
    Brainstorm soap you actually use: bar or cake, liquid, paste and powder.
  2. Natural ingredients for soap
    40 min · 1 practice tasks · quiz
    Ash, water, salt, animal fat and plant oil are the design ingredients. Ash water will be lye: handle later under safety rules.
  3. Lye safety
    40 min · 1 practice tasks · quiz
    Ash leach is alkali. It burns. Adult zone, gloves, no taste, no aluminium, water to flush, never a drink bottle.
  4. Leaching ash
    40 min · 1 practice tasks · quiz
    Water through cold wood ash drips as lye. Learners may help with cold ash; the drip bowl is an adult zone.
  5. Fats and oils for soap
    40 min · 1 practice tasks · quiz
    Use clean rendered animal fat or spare plant oil. Not drain sludge, engine oil, or the house cooking oil taken without asking.
  6. Making bar soap
    40 min · 1 practice tasks · quiz
    Adult combines lye water and fat, optional salt, pours a mould. Learners line moulds and stay behind the line until the bar is cool and labelled.
  7. Liquid, paste and powder
    40 min · 1 practice tasks · quiz
    From a cooled safe bar, grate to paste, dilute to liquid, or dry to coarse powder. Label SOAP, never a drink bottle.
  8. Use homemade soap
    40 min · 1 practice tasks · quiz
    Wash with the soap you made, store it labelled, and embrace making it again with the same lye rules.