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Natuurwetenskappe

Lewe en lewenswyse

Opvoeders afdeling

Memorandum

1. Aantal plantsoorte: vier

  • Vier soorte: Bome: groei hoog (lang stam), vertak, baie blare, staan op hul eie.
  • Struike: soos bome maar nie hoog nie (nie ‘n lang stam nie)
  • Rankers: groei hoog maar staan nie op hul eie nie – rank teen ander plante of enige struktuur op.
  • Grondbedekkers, kruide: groei laag

2. In bome/struike: Insekte, voëls, slange, eekhorinkies

  • Op grond: Muise, insekte, hase, voëls, slange, paddas
  • In dooie laag op grond: Erdwurms en ander wurms, besies, paddas
  • In grond: Erdwurms, molle, slange
  • In water: Visse, insekte, paddas

3. Elke plant en dier is op ‘n bepaalde wyse aangepas om in sy omgewing te kan oorleef.

Leerder afdeling

Inhoud

Aktiwiteit: om inligting wat uit ‘n studie van ‘n ekosisteem verkry is te interpreteer [lu 2.3]

VERSKEIDENHEID BINNE ‘N EKOSISTEEM

‘n Ekosisteem word gekenmerk deur ‘n groot verskeidenheid lewende organismes.

Kyk na die bygaande illustrasie van ‘n ekosisteem en beantwoord die vrae wat daarop volg. As jy toegang het tot ‘n plek waar plante groei, veral as daar ook water is soos ‘n stroompie of dam, kan jy gerus ‘n bietjie tyd daar spandeer en probeer om verdere inligting vir jou antwoorde daar te vind. Jy het dan ‘n ekosisteem waarin jy waarnemings kan maak.

  1. Hoeveel verskillende soorte plante kan jy onderskei? ________________
  • Probeer om vier soorte te onderskei en beskryf elkeen:

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2. Probeer vasstel watter diere jy moontlik op die volgende plekke in die ekosisteem sou kon vind (raadpleeg boeke of ondersoek die ekosisteem wat jy gekies het):

  • In die bome en struike bokant die grond:

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  • Bo-op die grond:

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  • In die laag dooie plantmateriaal bo-op die grond:

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  • In die grond:

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  • In die water:

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  • Hoekom is daar so ‘n verskeidenheid plante en diere?

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Assessering

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

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

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