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Emergencies: food, shelter and protective clothing

Emergencies and refugees: shelter, emergency food, food processing and protective clothing. Read one part at a time and tap “I know this”. Then test yourself in the quiz.

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Food

NutrientWhat it does for the body
CarbohydratesGive energy
ProteinsHelp the body grow and repair itself
Vitamins and mineralsKeep the body healthy and strong
Fats and oilsGive a lot of energy and help keep the body warm (e.g. cooking oil, peanut butter)
Wash handsMeasureingredientsCookServe
A sequence of manufacture: the steps, in order.
  • Food processing changes raw food so it is safer or lasts longer. Biltong is salted and dried.
  • Evaluate food on flavour, texture and nutritional value. Texture is how it feels in your mouth.
  • Hygiene in a camp is essential: germs spread fast where many people live close together.
Emergency shelters and food after a flood.
Emergency shelters and food after a flood.
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Shelter and clothing

  • Indigenous builders use mud bricks, thatch, wooden poles and stone: cheap, nearby and they keep homes cool.
  • Shacks of corrugated iron and plastic sheets burn easily and insulate poorly.
  • Make material waterproof with wax or oil. Test a model of a shelter first to find problems cheaply.
  • Rescue clothing is brightly coloured so the workers can be seen easily.
  • Burn test of fabrics (only with a teacher): wool burns slowly, chars and often goes out by itself; cotton catches fire easily and burns quickly to ash; nylon and polyester melt and drip, and the hot plastic sticks to the skin. That is why firefighters wear flame-resistant fabrics.
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Remember this and test yourself

Remember this: your summary
  • A refugee has had to flee to another country because it is not safe at home (for example, war). People who must leave home because of a disaster such as a flood or drought, but stay in their own country, are displaced people.
  • Good emergency shelter: quick to put up, strong and weatherproof, with ventilation against damp.
  • Emergency food must keep for a long time without spoiling: dried beans, tinned food, biltong.
  • Dry food: bacteria and mould need water to grow.
  • Firefighters: flame-resistant and heat-insulating. NSRI: waterproof, windproof, brightly coloured.

Write these points in your book. Read them again the night before the test.

Memory trick

After a disaster: W-F-S — water, food, shelter.

Flash cards · Tap to turn over

Important words

First say what the word means, then turn the card over.

Test yourself · Part 2

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Read the question and the answer. Is the answer right? Tap True or False.

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    For parents
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    Follows CAPS for Grade 7 Technology (Technology). Always check your teacher’s notes and textbook too.

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