<< Chapter < Page Chapter >> Page >

Natural sciences

Grade 4

Matter, substances and materials

Module 57

The dangers of pollution

Activity:

To discuss the dangers of pollution and to try to make a difference

[lo 3.1.2, 3.2.1]

Unfortunately materials can cause pollution. We all know how important it is to preserve our environment and to prevent pollution as far as possible.

Let’s walk around the school grounds. Look around well and write down your findings.

Write down four things that you see on the school grounds.

Write down four things you saw which upset you or which could have a negative effect on our environment.

Choose one of the negative things and write a letter to the principal to make a suggestion on how the problem can be solved.

Dear ............................................................

Have the teacher or a member of the student council make an announcement about the problem and make an appeal to learners to do something about it.

Role-play: You are a television reporter. Report on the condition of the school grounds just after break.

Discuss ways of preventing pollution. Make a poster and stick it to the wall at the front of the class.

Discuss the use of rubbish removal by the municipality. Find out how rubbish was disposed of in the past and how standards of hygiene have improved over the years.

Let’s use waste material to make

Litterbug

  1. Get a large box and cover it with paper or cardboard that is going to be thrown away.
  2. Make a head on a smaller box and stick it onto the bigger box.
  3. Make a nose, eyes and mouth from waste material.
  4. Make arms, legs and feet.
  5. Keep him in a cupboard and collect recyclable material in him.

Make small stickers with ideas of how to combat pollution and hang them from a fishing line across the class. Use paper clips to hang them up.

Assessment

LEARNING OUTCOME 3: SCIENCE, SOCIETY AND THE ENVIRONMENT The learner will be able to demonstrate an understanding of the interrelationships between science and technology, society and the environment.

Assessment standard

We know this when the learner

3.1 understands science and technology in the context of history and personal knowledge:

  • describes methods of sending messages over short and long distances.
  • understands the impact of science and technology: identifies features of technological devices around him or her, and tells about their purpose and usefulness:
  • suggests why having running water in a home might make people’s lives easier.

Memorandum

Pollution is a serious problem. If the youth understand this and do something about it then the problem can be controlled. Emphasise this frequently – it will keep the classroom, terrain and town tidier.

Litterlout

Make it a class activity. The children should enjoy it very much.

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
Privacy Information Security Software Version 1.1a
Good
Berger describes sociologists as concerned with
Mueller Reply
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Natural sciences grade 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11096/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Natural sciences grade 4' conversation and receive update notifications?

Ask