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Geography

Grade 4

Food production in south africa

Module 20

The story of food

The story of food

Food is an important part of our everyday lives. We need food to grow, stay healthy and to stay alive. But there are people whose lives are only focused on food – they live to eat!

Before we look at how food is produced in the 21 st century, it is important to find out how our predecessors managed to put food on their plates from day to day.

Activity 1

To study illustrations and fill in missing words in a paragraph to complete a story about food [lo 2.3]

1
2
3
4
5

(possible answers: trade; hunter; herdsmen; wild plants; plough; meat; farmers)

Many years ago, the food that people ate was very different from the food we eat. At first, people lived as .........................................- gatherers who moved from place to place looking for animals to hunt for food. They lived in temporary shelters and when game became less plentiful, they moved to another place. They ate .......................................................... that they picked, with their meat. Their drinking water was gathered by catching rain or dew, or by fetching it from rivers or dams.

The hunters began gathering sheep and goats and herds of cattle, and so became .............................. who travelled around with their own flocks in search of good grazing. They had milk and ...................................... and did not need to hunt.

The herdsmen became ...........................................… They lived in one place where they could grow their own grain from the seeds of wild grasses. They lived in small groups near fresh water. They invented the ................................... to help them work the land. They found new ways to transport water to their lands (irrigation). Some of the communities expanded and experimented with different food crops, like maize, sorghum, pumpkins, squashes, wild watermelons, etc.

Portions of the harvests were put away to ensure that they would have food for the whole year and some crops were taken to nearby villages to ........................... it for other food or products.

Farming methods changed with the development of technology. The wooden ploughs of the past were replaced with iron ploughs. Instead of being pushed by people, up to twenty ploughs can nowadays be pulled by one air-cooled tractor.

Assessment

Learning outcome 2: geographical knowledge and understanding

The learner will be able to demonstrate geographical and environmental knowledge and understanding.

Assessment standard

We know this when the learner:

  • describes how basic human needs were met in the past and at present.

Memorandum

The story of food

  • Hunter
  • Fruit and seeds
  • Wild plants
  • Herdsmen
  • Meat
  • Farmers
  • Plough
  • Trade

Questions & Answers

Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
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What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
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Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
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Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
how did you get the value of 2000N.What calculations are needed to arrive at it
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Source:  OpenStax, Geography grade 4. OpenStax CNX. Sep 17, 2009 Download for free at http://cnx.org/content/col11084/1.1
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