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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

Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
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
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
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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