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Person 1:

mℓ wasted in 30 seconds

Person 2:

mℓ wasted in 30 seconds

AVERAGE:

Report back to the class. The teacher can write each group’s average on the board.

2. Diseases that can be related to the use of water

Divide the class into three groups.

Each group investigates one of the following with regard to the three most important diseases, namely cholera, bilharzia and diarrhoea:

a) causes of the disease;

b) symptoms;

c) treatment;

d) prevention of its spreading.

Finally, write a few sentences to summarize your conclusions with regard to water consumption, saving and conservation.

Assessment of RESEARCH PROJECT – WATER AUDIT

Were you able to PLAN and EXECUTE the project? Can you express your appreciation of water as a valuable resource? [LO 1.1; LO 1.2; LO 1.3; LO 3.1; LO 3.2]

Activity 3:

To be able to discuss the problem of pollution

[lo 2.2 lo 2.3]

Did you know?

POLLUTION happens in various ways. Make a list.

Identify and describe the pollution that is suggested by each of the following sketches:

Assessment: EXAMPLES OF POLLUTION

Were you able to identify and discuss the examples of pollution? [ LO 2.2; LO2.3]

Activity 4:

To be able to discuss recycling as a measure to avoid pollution

[lo 3.1, lo 3.2]

Think of as many examples as possible where material should be recycled. Present your ideas to the class. Listen to other ideas and write down the five that you consider to be best.

My ideas:

The FIVE best ideas from the class discussion:

How can the community be made aware of the ideas?

Man has the brain power and the technology to put an end to the worst mistakes that have been made in the past. However, it will need a combined effort – where we are all involved – to find solutions to all the problems. Once solutions have been found, we will have to engage in the long and challenging process of sustaining our efforts. It is our duty and responsibility to ensure that generations to come will inherit a healthy planet.

Therefore: think twice before you throw that piece of paper out of the window of the car, or if complain when your school announces a recycling programme.

Assessment of RECYCLING

Were you able to understand that man must continue his attempts at protecting his natural resources?

[LO 3.1, 3.2]

Assessment

LO 1: Scientific investigations:

The learner will be able to act confidently on curiosity about natural phenomena, and to investigate relationships and solve problems in scientific, technological and environmental contexts.

This is evident when the learner:

  • plans investigations;
  • conducts investigations and collects data;
  • evaluates data and communicates findings.

LO 2: Constructing Science Knowlege:

The learner will know and be able to interpret and apply scientific, technological and environmental knowledge.

This is evident when the learner:

  • categorises information;
  • interprets information.

LO 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.

This is evident when the learner:

3.1 understands science as a human endeavour;

3.2 understands sustainable use of the earth’s resources.

Memorandum

Activity 1: Ecological problems and solutions

PROJECT: WATER AUDIT AT THE SCHOOL

  • Form groups of 4. Plan the following:

1. How to determine water consumption at the school.

2. Determining how to represent the findings in a report.

3. The recommendations to be made.

Hand the completed report and findings to the teacher on the predetermined date.

Report-back by Groups. Final findings may be passed on to the school's management body.

Own memorandum

Assignment 1 : WATER WASTAGE AT TAPS

  • Own memorandum

Assignment 2: CLASS DISCUSSION ON RECOMMENDATIONS

  • Which recommendations dealing with water wastage at taps would you hand in together with the water audit that you submit to the school's governing body?
  • List of recommendations:
  • Own memorandum

Assignment: DISEASES LINKED TO WATER

POLLUTION occurs in various forms. Compile a list:

Oil, chemicals dumped by industry; plastic, car tyres, paper and rubbish littering; water and toxic substances; spraying of insecticides,

Assignment 4 : IDENTIFYING INSTANCES OF POLLUTION in an illustration:

  • Memorandum for the illustration

Assignment 5 : POSTER ON POLLUTION

  • Own memorandum

Assignment 6 : SUGGESTIONS FOR RECYCLING

  • Own memorandum

Questions & Answers

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
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
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
How can I make nanorobot?
Lily
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
how can I make nanorobot?
Lily
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
While the American heart association suggests that meditation might be used in conjunction with more traditional treatments as a way to manage hypertension
Beverly Reply
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Source:  OpenStax, Natural sciences grade 8. OpenStax CNX. Sep 12, 2009 Download for free at http://cnx.org/content/col11050/1.1
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