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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

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
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.
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
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali 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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