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English first additional language

Grade 4

What a wonderful world

Module 36

Pollution

Activity 1

To read a graph [lo 3.3.4]

THINKING AND REASONING

One of the greatest threats to mankind today is pollution. There are different kinds of pollution. One of the worst is ocean pollution. One must remember that oceans cover more than 70% of the surface of the earth and what happens in a certain part of the sea can influence almost the whole world. Pollution is a problem that directly affects all the organisms in the sea and spoils the natural balance of sea life.

Oil pollution is one of the most dramatic forms of ocean pollution.

Activity 2

To write lists with headings [lo 4.1.2]

In the table below, write down the six headings that you find in the graph, and next to each one, write a short explanation of what it is and how it occurs. The first one is given as an example. Write a heading for the whole table.

HEADING:
Tanker accidents Ship crashes and oil leaks from the ship.Ship breaks up because it is old and oil leaks into the sea.

It is our duty to look after our natural resources, but unfortunately we often destroy precious life because of our greed. Some ships’ owners don’t look after their ships properly and just carry on sending old dilapidated ships to sea. In so doing, they threaten the lives of the crew and pose a threat to marine life.

Until quite recently human beings have – generally speaking – behaved very selfishly towards other creatures and also towards nature in general. They did not think about the consequences of their actions. People are by nature greedy, careless and vain. These characteristics have caused many wonderful animals to become extinct.

Some of the earth’s creatures that have in recent times faced extinction are the right whale, the panda, the wild dog and the rhinoceros. Fortunately programmes have been put in place to save these animals. Some, like the whale, are even being used to promote tourism. Think of the famous Whale Festival that is held in Hermanus every year.

You all know of the dinosaurs that used to roam the earth. You have probably also heard of the ancient mammoths. But have you heard of the dodo?

In 1598 AD (some sources say it was slightly earlier) Portuguese sailors landed on the island of Mauritius, and discovered a previously unknown species of bird that they called the Dodo. As the dodo had never before had any contact with humans, it had no fear of them. It was a gentle creature and was almost like an innocent child as it approached the sailors. They thought it was rather stupid, and that it why they called it a “dodo” (meaning something like “simpleton” in Portuguese).

The dodo weighed up to 14 kg and was very good to eat. Its wings were underdeveloped, so it couldn’t fly. It was, therefore, an easy-to-catch source of food for both sailors and settlers. Later, when other animals like dogs and pigs were introduced to the island, the dodo fell victim to these invaders as well. As the settlers

cleared the forests, the dodo’s natural habitat was destroyed.

By 1681 the dodo was extinct.

Today it is represented in museums by only parts of skeletons. There is one complete skeleton that was compiled from the bones of different individual birds.

Source: (External Link)

Activity 3

To answer and begin to ask more complex questions [lo 5.2.1]

1. Answer the following questions (in full sentences and in your own words) that are based on the previous passage:

(a) Why was it so easy to catch the dodo? Give two reasons.

…………………………………………………………………………

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(b) Why wasn’t the dodo afraid of humans at first?

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(c) In what way, do you think, did the introduction of pigs onto the island affect the dodo’s life?

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(d) What happens to a creature when its natural habitat is destroyed?

…………………………………………………………………………

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…………………………………………………………………………

…………………………………………………………………………

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(e) How are whales being used to promote tourism nowadays?

…………………………………………………………………………

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…………………………………………………………………………

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(f) What does the AD (in 1598 AD) stand for? Do you know the Latin form?

…………………………………………………………………………

…………………………………………………………………………

Assessment

Learning outcome 3: reading and viewing

The learner will be able to read and view for information and enjoyment, and to respond critically to the aesthetic, cultural and emotional values in texts.

Assessment standard

We know this when the learner:

3.3 reads for information:

  • reads diagrams, graphs and charts (e.g. a family tree).

Learning outcome 4: writing

The learner will be able to write different kinds of factual and imaginative texts for a wide range of purposes.

Assessment standard

We know this when the learner:

4.1 writes to communicate information:

4.1.2 writes lists with headings;

Learning outcome 5: thinking and reasoning

The learner will able to use language to think and reason, and access, process and use information for learning.

Assessment standard

We know this when the learner:

5.2 uses language for thinking:

5.2.1 answers and begins to ask some more complex questions (e.g. “Why…?” “How do you think…?”).

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, English first additional language grade 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11093/1.1
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