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Die aarde en daarbuite


Opvoeders afdeling


  • Vind meer uit:

Gebruike van leiklip

  • Tuinpaadjies
  • Stoepteëls, ens.

Gebruik van marmer

  • Kombuisoppervlaktes
  • Grafstene, ens.Opdrag 6:
Sedimentêr Metamorfies
Word nuut gevorm uit rotse of reste van lewende organismes wat gevrek het. Bestaande gesteentes wat weens druk of hitte verander.
Sagter Harder

Leerder afdeling


Aktiwiteit: om metamorfiese gesteentes as ‘n vorm van gesteente te kan bespreek [lu 2.1]

  • Metamorfiese gesteentes is gesteentes wat reeds bestaan het en dan as gevolg van groot druk of hitte verander. Hierdie metamorfose of verandering neem BAIE lank om plaas te vind, aangesien die rots op ‘n sekere diepte onder die aardkors moet wees, waar dit aan uiterste hitte en druk blootgestel kan word. Daarna kan daar maklik 100 miljoen jaar verloop voordat die aardoppervlak so verander is deur erosie dat hierdie gesteentes blootgelê word.
  • Leiklip/Leisteen word gevorm a.g.v. baie groot druk wat op reeds bestaande gesteentes uitgeoefen word.
  • Marmer word gevorm a.g.v. die geweldige hitte waaraan bestaande gesteentes blootgestel word.


  • Verduidelik hoe metamorfiese gesteentes en sedimentêre gesteentes verskil.













LeerkragassesseringKRITERIA 1. 2. 3. 4.
1. Is al drie tipes gesteentes voldoende gedek?
2. Is die belangrikste aspekte uitgelig?
3. Is meer bronne as slegs die module gebruik?
4. Toon die leerder insig in gesteentes?


Leeruitkomste 2: Die leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

Assesseringstandaard 2.1: Dis duidelik wanneer die leerder inligting interpreteer.

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
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
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
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.
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
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
characteristics of micro business
for teaching engĺish at school how nano technology help us
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
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
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.
what is the actual application of fullerenes nowadays?
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.
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?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
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
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Natuurwetenskappe graad 6. OpenStax CNX. Sep 17, 2009 Download for free at http://cnx.org/content/col11080/1.1
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