<< Chapter < Page Chapter >> Page >

Life skills

Grade 2

Journeys

Module 6

Water

Why did you have to move backwards for drinking from the stream? discuss why this was wrong.

Water

READ THE FOLLOWING:

Water from streams is not always clean. There are many ways in which it can become contaminated. If it is near a small village, it may be used for washing and cleaning and the dirty water is thrown back into the river.

If it is near a town, factories may use the water and pump their waste back into the river. Even if humans are not contaminating the water, there may be many little creatures or germs in the water that are harmful to humans.

Think of ways to make the water safe to drink. Write them here and then discuss your answers with your teacher.

We purify water!

The water that we get in our taps has been purified, so that it is safe to drink. Chemicals have been added to make sure that germs cannot live in it. The simplest part of the water purification is filtering. Filtering is a process, which works like a strainer or a sieve and prevents the larger objects from passing through.

Your teacher will give you some dirty water. See if you can make your own filter to clean it.

What will you use? List your apparatus.

  • What will you do?
  • What do you think will happen?
  • Draw and label your experiment.
  • Your layers will prevent the worst of the dirt getting through to your container. Naturally you cannot drink this water, as the germs are tiny enough to slip through your filter.
  • What do you think will get rid of the germs?

Assessment

Learning Outcomes(LO’s)
LIFE ORIENTATIONLO 1
HEALTH PROMOTIONThe learner will be able to make informed decisions regarding personal, community and environmental health.
Assessment Standards(ASs)
We know this when the learner:
1.1 describes sources of clean and unclean water and simple water purification methods;1.2 suggests and investigates actions to make the home and school environment healthier;1.4 identifies road signs relevant to pedestrians and explains their meaning..
emsLO 1
THE ECONOMIC CYCLEThe learner will be able to demonstrate knowledge and understanding of the economic cycle within the context of ‘the economic problem’.
Assessment Standards(ASs)
We know this when the learner:
1.5 expresses the importance and ways of saving and not wasting money and other resources such as water and electricity.
NATURAL SCIENCELO 1
SCIENTIFIC INVESTIGATIONSThe learner will be able to act confidently on curiosity about natural phenomena, and solve problems in scientific, technological and environmental contexts.
Assessment Standards(ASs)
We know this when the learner:
1.1 Plans : plans an investigation as part of a group;1.2 Does : participates in planned activity independently or as part of a group;1.3 Reviews : shows and explains what was intended and how it was done.
ARTS AND CULTURELO 4
EXPRESSING AND COMMUNICATINGThe learner will be able to analyse and use multiple forms of communication and expression in Arts and Culture.
Assessment Standards(ASs)
We know this when the learner:
4.3 Drama : uses puppets, animated stones, mealie cobs or other objects in dramatic play to express own ideas and feelings;4.6 Composite : talks about what the learner has seen and heard in own environment that has been of significance to self.

Memorandum

  • Our journeys can also take us into the countryside. This can bring us into contact with unclean water and the importance of clean water.
  • Stress the importance of water as a precious resource in our lives (especially in a country like South Africa where we often experience periods of drought) and that we need to save and not waste it. Discuss another resource that we often take for granted: electricity. These resources should be used with respect just as we need to save or use our money wisely.
  • Ask the learners to think of ways of saving water and electricity in their own homes. Remind them that in this way they are also saving money! (EMS 1.5).
  • Let the learners try to think of a slogan or jingle to remind them not to waste, something like “An apple a day keeps the doctor away”. If they want others to always close the tap properly, they must try to find a rhyme with “tap” and “water” to make their friends close the tap, e.g. “Close it well, leave no drops to tell”, or in the case of switching off the lights, “Have you flipped a switch today?”
  • Explain that for some people the lack of water or running water is a serious issue. If this is a problem in your area, use the task described in the activity as your next assignment. If not, try to identify an environmental issue in your community, whether it be some traffic hazard, a pollution problem or something else that the learners are exposed to.
  • Let them have a group brain storming session about the factors causing or leading to this issue. Give each group a large sheet of paper so that they can list the causes. Then let them establish who is affected by the problem and suggest a solution.
  • They will therefore
  1. identify an issue;
  2. list possible causes;
  3. find out who is affected;
  4. propose a solution.

(GEOG. 1.4; A&C 4 Composite).

Questions & Answers

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
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
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
hi
Loga
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
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
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, Life skills grade 2. OpenStax CNX. Sep 21, 2009 Download for free at http://cnx.org/content/col11105/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Life skills grade 2' conversation and receive update notifications?

Ask