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Aardrykskunde

Graad 4

Hulpbronne en dienste in ‘n nedersetting

Module 13

Wat is hulpbronne?

Hulpbronne

Definisie : Hulpbronne is dinge wat ons nodig het om dinge mee te doen/maak.

Is die volgende almal hulpbronne? Kyk weer na die definisie hierbo en bespreek eers die moontlike antwoorde met ‘n maat.

  1. koper
  1. vis
  1. olie
  1. hout
  1. water
  1. die son
  1. wind
  1. sand
  1. kalk
  1. aluminium
  1. steenkool
  1. grond
  1. beesmis
  1. goud
  1. gas
  1. yster

Nog ’n hulpbron: Die Mens

Wat kan sonder die bestuurder en die werker gebeur? Niks!

Onthou: omdat die mens ’n belangrike hulpbron is, moet daar goed na hom omgesien word, maar die natuur voorsien die ander hulpbronne – dit moet ook baie goed opgepas word. Meer hieroor later!

Uitslag van die toets:

Dalk het jy en jou maat lekker gestry oor wat hulpbronne is. Die een wat die beste gevaar het, is die een wat gesê het dat al sestien name hulpbronne is.

Aktiwiteit 1

Om hulpbronne in ons alledaagse lewe te identifiseer [lu 2.1]

Dink so ‘n bietjie en voeg nog voorbeelde by die voorbeelde wat reeds verskaf is.

  • Hulpbronne wat die mens help om voedsel te produseer:

grond, fosfate (vir die maak van kunsmis), water, kraalmis

............................................................................................................................

............................................................................................................................

............................................................................................................................

  • Hulpbronne wat die mens help om homself te verwarm en kos gaar te maak:

steenkool, hout, olie, gas

............................................................................................................................

............................................................................................................................

............................................................................................................................

  • Hulpbronne wat die mens help om toerusting vir die huis te produseer:

hout, metale, steenkool, olie

............................................................................................................................

............................................................................................................................

............................................................................................................................

  • Hulpbronne wat gebruik is om toerusting vir jul klaskamer te produseer:

steenkool, hout, metale

hout, metale, steenkool, olie

............................................................................................................................

............................................................................................................................

............................................................................................................................

Baie belangrik:

Dink mooi na oor al die hulpbronne wat genoem is, ook dit wat deur julle bygevoeg is. Watter van hierdie hulpbronne kan nooit opraak nie? Skryf dit in die lyntjies neer. Daarvan sal julle meer in Graad 5 leer.

Daar is so baie arm mense in Suid-Afrika en Afrika wat beesmis in koeke droogmaak om vuur mee te maak, dat dit eintlik ook ‘n energiebron genoem kan word

Kaartwerk

Aktiwiteit 2

Om die kaart van suid-afrika te bestudeer en die vrae te beantwoord [lu 1.1]

Natuurlike hulpbronne in suid-afrika

Watter myne vind ons in Gauteng? ......................................................................

Watter myne vind ons in die Noord-Kaap? .............................................................

Watter tipe boerdery sal jy in die Vrystaat vind? ....................................................

Watter dierbronne kom in jou provinsie voor?.........................................................

In watter provinsie vind ons weinig boerdery? (Gee ‘n rede vir jou antwoord.)

................................................................................................................................

Assessering

Leeruitkoms 1: aardrykskundige ondersoek

Die leerder is in staat om ondersoekvaardighede te gebruik om aardrykskundige en omgewingsbegrippe en -prosesse te ondersoek.

Assesseringstandaard

Dis duidelik wanneer die leerder

1.1 inligting uit verskillende bronne identifiseer (kaarte, atlasse, boeke).

Leeruitkoms 2: aardrykskundige kennis en begrip

Die leerder is in staat om aardrykskundige en omgewingskennis en -begrip te toon.

Assesseringstandaard

Dis duidelik wanneer die leerder

2.1 die eienskappe van die plaaslike nedersetting, insluitend landgebruik, beskryf en dit vergelyk met voorbeelde van ander plekke (mense en plekke).

Memorandum

Hulpbronne in ons alledaagse lewe

  • Son
  • Saad
  • Kalk
  • Son
  • Paraffien
  • Diervelle
  • Glas
  • Rubber

Baie belangrik:

  • Son
  • Grond
  • Water (as ons mooi kyk daarna)

Kaartwerk

Kaart van suid-afrika

  • Goud
  • Diamante
  • Skaap, bees, mielies, koring, sonneblomme
  • Noord-Kaap – droog

Questions & Answers

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
?
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
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
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
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
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.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
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.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
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Source:  OpenStax, Aardrykskunde graad 4. OpenStax CNX. Oct 21, 2009 Download for free at http://cnx.org/content/col11083/1.2
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