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Materie, meting en reaksies

Materie en meting

Opvoeder afdeling



1. partikels (klein deeltjies)

2. vaste stof; vloeistof; gas

3. atome

4. molekules

5. atoom

6. twee of meer atome

7. verbinding; elemente; kwik; suurstof

8. suurstof

9. verbindings

10. opgeneem

11. suurstof

12. ruimte; massa

13. 1 cm3

14. minder

Leerder afdeling


Aktiwiteit: toets jou kennis [luo 2.1, lu 2.4]

Vul die ontbrekende woord/e in:

1. Alle materie op aarde is uit ____________________________________ gemaak.

2. Materie kan in drie vorms voorkom, nl ________________________________,

________________________________ en ______________________________

3. Alle materie bestaan uit klein deeltjies wat ___________________ genoem word.

4. Hierdie deeltjies verbind om ___________________________________ te vorm.

5. ‘n Element is materie wat slegs uit een soort ______________________ bestaan.

6. ‘n Verbinding bestaan uit ____________________________________________

7. Die verhitting van kwikoksied het bewys dat dit ‘n ________________ is wat uit

twee _____________________, nl. _______________________________ en

__________________________________________________________ bestaan.

8. ‘n Gloeiende splinter slaan aan die brand as dit in _________________________

gesteek word.

9. Elemente is die boustene van _________________________________________

10. Tydens die ontbinding van verbindings in hulle samestellende elemente word

warmte __________________________________________________________

11. Watter van die volgende is ‘n element: lug; water; ysteroksied of suurstof?


12. Alle materie beslaan _____________________ en het ____________________

13. ‘n Voorwerp wat in water sink, sal ‘n digtheid hê van meer as _______________

14. Room dryf op melk omdat dit __________________________ dig is as melk.



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

Assesseringstandaard 2.3: Dit is duidelik wanneer die leerder inligting interpreteer: identifiseer kernidees in die teks, vind patrone in aangetekende data en maak gevolgtrekkings uit inligting in verskeie vorme (prente, diagramme, ens.).

Assesseringstandaard 2.4: Dit is duidelik wanneer die leerder kennis toepas: pas konseptuele kennis toe deur ‘n begrip wat onderrig is met ‘n variasie van ‘n soortgelyke situasie in verband te bring.

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 7. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11078/1.1
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