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English home language

Grade 7

Module 6

Inventions

Listen to an imaginary start to your day long, long ago….

PICTURE THIS

You wake up in the morning when it gets light. No electricity yet. There are also no alarm clocks to jolt you awake - they weren’t invented until 1847. Instead of struggling out of bed (no beds for a few thousand years), you crawl out of a pile of skins. Your clothes are skins too; people didn’t figure out how to spin wool or weave cloth for another thousand years or so. You don’t need to worry about brushing your teeth. The Chinese invented toothbrushes only about the time Columbus sailed to America (1492). Electric toothbrushes didn’t come along until 1961.

You are in for some surprises for breakfast too. Forget about cornflakes swimming in delicious cold milk. John and Will Kellogg didn’t invent Kellogg’s Corn Flakes until 1898, and there were no electric refrigerators to keep milk cold until the early 1900s. Breakfast 10 000 years ago is a bone left over from yesterday’s kill. If you feel the need to go to the bathroom, head for the bushes. There were no flush toilets until an English poet named Sir John Harrington designed and built one for himself in about 1596.

And so we could go on and on….

Inventions were often as a result of people wanting to make things more comfortable or as labour-saving devices. Take the wheel for example. The wheel made carrying heavy loads much easier.

LO 1.1

Proverbs inspired by inventions?

  1. _______________is the mother of invention.
  2. Where there is a______________there is a way.
  3. If at first you don’t___________, try, try and try again.
LO 6.4.3

INVENTING

Every moment of your day you are surrounded by INVENTIONS. Just think of all the inventions in your morning from the time you get up till first break: a shower; hair-dryer; toothbrush; flush toilet; toaster; kettle; television; car; calculator; plastic lunchbox…Needless to say, the list could go on and on.

What to do

  • Make a list of household and school appliances which you use daily.
  • Now compare your list within your group.
  • Pick out the TOP TEN according to your group and list them in order of importance in YOUR life. (This is easy if you think about being dropped off in some remote place without any of the inventions you have listed. Which ten would you miss most?)
LO 2.2
LO 5.3.1

What to do next

  • Write a piece of no more than 150 words entitled IMAGINE LIFE WITHOUT…
  • Write 4 paragraphs - 1. Introduction.

- 2. What you COULD live without if you absolutely HAD to, but with great difficulty.

- 3. What you absolutely could NOT survive without at all and why.

- 4. Ending.

  • Be original and try a touch of humour.

FOR THE EDUCATOR : Encourage use of mind maps. Remember drafts, editing, and peer checking.

LO 4.1.2

OLD AND NEW

In each list, THREE of the items are modern inventions and humans have used ONE of them for hundreds of years. Spot the odd one out and highlight it.

  1. polythene, leather, elastic, fibreglass
  2. margarine, cornflakes, honey, potato crisps
  3. radio, television, refrigerator, clock
  4. polystyrene, plastic, glass, nylon
  5. button, zip fastener, stud, Velcro

Questions & Answers

anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
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
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar 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, English home language grade 7. OpenStax CNX. Sep 09, 2009 Download for free at http://cnx.org/content/col11018/1.1
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