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Graad 4

Energie en verandering

Module 26

Die son as bron van energie op aarde


Om die son as bron van energie vir lewe op aarde te beskryf

[LU 2.1]

Die son is natuurlik ons belangrikste bron van energie. Die mens aanvaar die son as vanselfsprekend, want ons sien elke oggend die son opkom en saans sien ons dit weer ondergaan. Die son stuur sy energie in alle rigtings oor die aarde. Die son verhit die aarde en gee dus op hierdie manier energie aan die aarde. Die plante gebruik van hierdie energie om te groei en wanneer diere die plante eet, kry hulle ook van hierdie energie! Die diere gebruik weer die energie om te beweeg en te groei.

Waar kry ons as mense ons energie vandaan?

Verduidelik in ‘n kort sinnetjie wat op elk van die volgende prentjies gebeur. Skryf die sin netjies onder elke prentjie neer.

Energie is dus nou vanaf die son na die koringplant en vandaar na Phillip se liggaam oorgedra. Hierdie oordrag is soos wanneer jy pouse ‘n broodjie met jou maatjie sal deel. Jy gee dit mos weg vir hom/haar.


LEERUITKOMS 2: KONSTRUKSIE VAN WETENSKAPLIKE KENNISDie leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.


Dit is duidelik wanneer die leerder

2.1 betekenisvolle inligting onthou.


Sinne wat by die prentjies pas

Die son gee energie aan die koringplant, wat dan die energie stoor.

Die brood en pap bevat nou die energie van die koring.

Phillip se liggaam neem nou die energie op.

Hy gebruik energie om te oefen.

Om kos gaar te maak deur sonenergie te gebruik

  • Neem ‘n polisterienkoppie en voer dit met plastiek uit en sit kos daarin.
  • Bind die bokant van die koppie toe met ‘n stuk plastiek en bind dit stewig met ‘n rek toe.
  • Neem ‘n A4-stuk papier of karton en sit aluminiumfoelie op die een kant, maak ‘n keëlvorm daarmee en sit dit rondom die koppie met die foelie aan die binnekant. Sny dit netjies.
  • Sit die koppie met die keël in ‘n ander polisterienkoppie en sit dit in ‘n houer om regop te bly; sit sommer koerantpapier rondom om dit te stut.
  • Sit dit nou in die son, en maak seker dat die “oondjie” na die son toe wys”.
  • Los dit so totdat die kos gaar is. Beweeg die pot, sodat dit altyd na die son toe wys.

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 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11097/1.1
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