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Grade 5


Module 18

Natural resources: minerals

Minerals as a natural resource

South Africa has large deposits of minerals like gold, iron, coal, platinum and diamonds. The map on the next page shows that these South African minerals are concentrated in the north-eastern part of the country. Coal and gold make up a large proportion of our country's mineral wealth.

Minerals in South Africa

Some of these minerals are mined at the surface (diamonds), while others are mined deep below the surface under extremely dangerous conditions.

Iron, which is a basic component in the production of steel, is less abundant. Melting iron ore and other minerals together in large furnaces manufacture steel. Flat steel plates are manufactured during this process. Later on, these steel plates are used to manufacture other products. Steel is a very important component of the modern manufacturing process. Just consider the car that was referred to earlier in the module. Without steel, there would be no motor vehicle production line.

There are two methods of mining:

  • open mining;
  • tunnel mining.

Minerals like iron, copper, asbestos and diamonds are sometimes mined from open cast mines. These simply are large open holes in the earth that are dug in such a way that a spiralling road leading to the deepest part of the mine is formed. This means that vehicles that transport ore and materials to the places where they are processed can be driven to every part of the mine.

When minerals are found deep under the ground, a shaft has to be built. Mine headgear is erected and a deep hole is drilled into the earth. Shaft diggers (sinkers) dig side passages and tunnels from this hole (shaft). This enables the miners to reach the reefs or veins containing the minerals. These passages and tunnels are situated on different levels.

The minerals are blasted loose with dynamite and are then dug out. The “gravel” is loaded into iron buckets (cocopans), which run along a rail like a train and are hoisted to the surface of the earth in lifts for the minerals to be processed. Excess rock is dumped on mine dumps and the watery remains are taken to sludge dams .


To supply a diagram with captions

[lo 1.1]

  • Consult the preceding paragraphs and supply this illustration of a cross-section of a shaft mine with the necessary captions.


LO 1


The learner will be able to use enquiry skills to investigate geographical and environmental concepts and processes.

We know this when the learner:

1.1 with guidance, selects and uses sources of useful geographical information [finds sources];

1.2 distinguishes between facts and opinions [works with sources];

1.3 categorises information [works with sources];

1.4 uses an index to find places on global atlas maps [works with sources];

1.6 identifies and explores possible solutions to problems [answers the question];

1.7 demonstrates knowledge and under-standing of the issue through projects, discussion, debate and charts [communicates the answer].

Questions & Answers

how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
is Bucky paper clear?
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
many many of nanotubes
what is the k.e before it land
what is the function of carbon nanotubes?
I'm interested in nanotube
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
what is system testing
what is the application of nanotechnology?
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
anybody can imagine what will be happen after 100 years from now in nano tech world
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
silver nanoparticles could handle the job?
not now but maybe in future only AgNP maybe any other nanomaterials
I'm interested in Nanotube
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
can nanotechnology change the direction of the face of the world
Prasenjit Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Social sciences: geography grade 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10986/1.2
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