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1.11 evaluates the plan of action followed and suggests improvements and modifications if necessary.

communicates:

1.12 produces labelled two-dimensional drawings enhanced with colour where appropriate.

LO 2

Technological Knowlede and Understanding

The learner will be able to understand and apply relevant technological knowledge ethically and responsibly.

We know this when the learner:

structures:

  • demonstrates knowledge and understanding of how materials can be processed to change or improve properties (e.g. strength, fire resistance, waterproofing, taste, volume, texture).

LO 3

Technology, Society and the Environment

The learner will be able to demonstrate an understanding of the interrelationships between science, technology, society and the environment.

We know this when the learner:

Indigenous Technology and Culture:

3.1 recognises how products and technologies have been adapted from other times and cultures.

Impact of Technology:

3.2 suggests ways to improve technological products or processes to minimise negative effects on people and/or the health of the environment.

Memorandum

Assignment 1

Weapons: short spear assegai and knobkierie

shields of skin that protected the warrior from head to toe

Clothes: leather sandals or barefoot

a leather headband, leather bangles and beads/feathers around ankles and

a loin girdle, made from the tails of wild animals, strung together on a leather

briefs made out of skin

Source: translated from Shaka Jean Labuschagne ( Japsnoettake, Daan Retief Publishers)

The warrior had to be very mobile; therefore he could not wear heavy clothes. Use own discretion.

Assignment 2

No, the leopards are a threatened species. / Yes, an old jacket. Own discretion

Assignment 3

Natural Man-Made
a jacket made out of fur a plastic bag
a wooden bowl a glass bottle

Assignment 4

Own discretion

Assignment 5

Own discretion – look out for variety of examples and completeness of labels.

Assignment 6A

Nylon Polyester Cotton Silk Wool
a Nylon Polyester Cotton Silk Wool
b easily easily not easily not easily not easily
shrinks away hard coal burns rapidly smells like hair smells like hair/feathers
hardens melts smells like paper melts brittle ash/soft coal
hard coal brittle ash/soft coal burns slowly
c long long short short very short
d depends on example
e less durable less durable durable durable durable
f depends on example
g depends on example, usually … silky resilient
smooth folds rough luxurious feel woolly
shiny coarse “noise” low static electricity
static woolly drapes beautifully static
little shine
slightly fluffy
low static electricity
h hard hard soft in-between soft
i retains heat retains heat cool cool retains heat
j synthetic synthetic natural natural natural

Assignment 6B

(a) any three properties

(b) any three properties

(c) winter

summer

winter

difficult

inside

Assignment 6C

Nylon Polyester Cotton Silk Wool
crease resistant does not crease as easily warm iron with care preferably dry-cleaning
colourfast do not bleach more colourfast bleaches in sunlight damaged by perspiration and bleaching well
stretchable little little may stretch a little little resilient
synthetic synthetic natural natural natural

Assignment 7

Own discretion

Cold climate – clothing that retains body heat.

Assignment 8

(a) Label A: natural

Label B: mixture

Label C: synthetic

(b) Label A: 100% cotton

Label B: 50% Polyester 50% Cotton

Label C: 100% Polyester

(d)

Label A Labe l B Label C
very warm wash warm wash warm wash
very warm iron warm iron warm iron
permissible if white no bleaching no bleaching

(e)

(f) lukewarm

easy

lukewarm

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
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Technology grade 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10979/1.2
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