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Aktiwiteit 2:

Om te besin oor noodmaatreëls in vulkaniese gevaargebiede

[lu 2.3]

1. Hoekom besluit mense om te woon in gebiede waar daar vulkaniese uitbarstings voorkom ? Dink goed hieroor na en gee dan jou opinie.

2. Verbeel jou jy bly in ‘n area waar daar vulkaniese uitbarsting voorkom. Stel ‘n lys met noodmaatreëls op wat in werking gestel moet word voor, tydens en na ‘n uitbarsting.

3. Versamel koerantberigte oor enige onlangse vulkaniese uitbarsting. Hou klasbesprekings daaroor en noem die gevolge wat dit gehad het.

4. Watter hulp is deur die eerstewêreldlande aan hierdie mense gebied? Kon meer gedoen word?

Interessante feit

Die ontsaglike krag wat in ons aarde se ingewande voorkom, laat ‘n mens eintlik bang word en laat jou aan die dood en verwoesting wat dit saai, dink.

Kom ons sluit egter positief af. Dalk kan ons nog eendag dié kragte inspan vir ‘n geriefliker lewe op aarde. Ons kan dalk maniere vind om hierdie krag te tem en elektrisiteit daarmee op te wek. Dink aan die impak wat so ‘n nuwe energiebron op ons bestaan kan hê!

‘n Webblad soos die volgende bevat nogal interessante inligting oor vulkane:

(External Link)

Assessering

Leeruitkomstes(LUs)
LU 2
AARDRYKSKUNDIGE KENNIS EN BEGRIPDie leerder is in staat om aardrykskundige en omgewingskennis en -begrip te toon.
Assesseringstandaarde(ASe)
Dit is duidelik wanneer die leerder:
2.1 beskryf en verduidelik hoe natuurgevare soos vulkane, aardbewings en oorstromings plaasvind, en die uitwerking daarvan op menselewens en op sosio-ekonomiese bedrywighede [mense en plekke];2.2 ondersoek en verduidelik waarom sommige mense meer as ander aan natuurgevare blootgestel is [mense en hulpbronne];2.3 identifiseer hoe risiko’s en natuurgevare hanteer kan word [mense en omgewing].

Memorandum

Aktiwiteit 1:

1. a) Die mens

  • Lawa verteer en /of laat huise en stede verkrummel.
  • Mense word deur die lawa verswelg.
  • Ander word deur die verstikkende swaelgasse en asreën verswelg en versmoor.
  • Mense verdrink as gevolg van tsoenami’s wat oor laagliggende gebiede ingespoel word.

b) Die natuur

  • Die natuurlike omgewing word geheel en al verwoes of verander deur ‘n vulkaan.
  • Rotse en as wat die lug ingeslinger word, veroorsaak lugbesoedeling.
  • Lawa vloei oor vrugbare valleie en verteer alle plantegroei.
  • Vuurwarm modderstrome verswelg stede en mense.
  • Tsoenami’s ontstaan in die see en kan laagliggende gebiede en eilande oorstroom.
  • Nuwe eilande ontstaan as gevolg van vulkaanuitbarstings onder die see.
  • Die natuurlike omgewing word omskep in iets nuuts. Stollingsgesteentes ontstaan, wat oor miljoene jare baie vrugbare grond vorm vir voedselproduksie.
  • Edelgesteentes word in stollingsgesteentes gevorm, soos diamante. Dit kan groot finansiële implikasies vir ‘n land inhou.
  • Warmwaterbronne is volop naby vulkane en lok toeriste. Die warm water word ook vir verhitting van geboue aangewend.

2. Leerders bring foto’s, prentjies en uitknipsels van vulkane na die klaskamer. Hou ‘n klasbespreking en vul aantekeninge aan.

Aktiwiteit 2:

1. Mense neem ‘n bewuste besluit om naby ‘n vulkaan te bly.

Ekonomiese oorwegings soos werkvoorsiening en finansiële welvaart tel baie keer meer as die potensiële gevaar van ‘n nabygeleë vulkaan.

2. a) Voor ‘n vulkaniese uitbarsting

  • Vulkane word deur seismograwe gemonitor en waarskuwings word uitgereik.
  • Areas moet ontruim word, indien voortekens voorkom.
  • Mense woonagtig in sulke areas moet altyd sorg dat hul noodvoorrade byderhand het.

b) Tydens ‘n vulkaniese uitbarsting

  • Mense moet so vinnig as moontlik uit die area wegkom.
  • Luister gedurig na nuusberigte sodat die verloop van die uitbarsting gevolg kan word.
  • Dra gasmaskers as beskerming teen swaelgasse.

c) Na ‘n vulkaniese uitbarsting

  • Opruiming van die area moet geskied en hulpverskaffing moet verleen word deur eerstewêreldlande.

3. Versamel koerantberigte oor enige onlangse vulkaniese uitbarsting en hou ‘n klasbespreking.

4. Eerstewêreldlande verleen finansiële hulp na so ‘n ramp.

Hulle stuur ook so spoedig moontlik noodspanne om te help met opruiming, mediese dienste en voedselvoorsiening.

Questions & Answers

how can chip be made from sand
Eke Reply
is this allso about nanoscale material
Almas
are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where is the latest information on a no technology how can I find it
William
currently
William
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
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
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
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
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
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
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Aardrykskunde graad 7. OpenStax CNX. Sep 09, 2009 Download for free at http://cnx.org/content/col11020/1.1
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