<< Chapter < Page Chapter >> Page >

Natuurwetenskappe

Graad 9

Lewensprosesse

Module 3

Voeding en gesondheid

In alle wêrelddele is daar mense wat nie gesond is nie as gevolg van verkeerde voeding.

Wanvoeding sluit in te veel of te min voedsel wat lei tot voedingsiektes. Dit kan verdeel word in ondervoeding en oorvoeding .

Ondervoeding :

Te min voedingstowwe, bv. anorexia nervosa of bulimia .

Te min proteïne, bv. kwashiorkor .

Te min vitamiene, bv. skeurbuik en beri-beri .

Oorvoeding:

Te veel van sekere voedingstowwe, bv. vetsug .

Klasaktiwiteit: plakkaat

  • Versamel inligting oor verskeie voedingsiektes – verdeel in groepe en maak 'n plakkaat om sekere siektes aan die klas te verduidelik.
  • Die klas moet ‘n tabel skep en voltooi met die volgende hofies:
  • Naam van siekte
  • Tekort aan
  • Simptome
  • Weefsels geaffekteer
  • Die siektes is soos volg:
  • Skeurbuik
  • Beri-beri
  • Ragitis
  • Pellagra
  • Kwashiorkor
  • Bloedarmoede

Bespreking oor GESONDE DIEET

  • Bespreek verskillende aspekte van 'n gesonde dieet.
  • Noem ten minste vyf dinge wat jy moet doen om 'n gesonde dieet te handhaaf.

Assessering: KLASBESPREKING EN PLAKKAAT

Kon jy inligting voorsien en dit gebruik om tabel, plakkaat en vraag te voltooi?

[LU 2.1, 2.2]

Assessering

LU 2

Konstruksie van Wetenskapkennis

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

Dit is bewys as die leerder:

2.1 betekenisvolle inligting kan onthou;

2.2 inligting kan kategoriseer;

2.3 inligting kan interpreteer;

2.4 kennis kan toepas.

Questions & Answers

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
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
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 did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
My ma het umfeseem en ha voete swel baie en sy kani uriene afslaan ni wat kan dit veroorsaak
Miggie Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Natuurwetenskappe graad 9. OpenStax CNX. Sep 15, 2009 Download for free at http://cnx.org/content/col11068/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Natuurwetenskappe graad 9' conversation and receive update notifications?

Ask