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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

where we get a research paper on Nano chemistry....?
Maira Reply
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
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
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
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
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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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