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Life orientation

Grade 5

Health and diseases

Module 1

Diet and nutrition

In this module shall try to explain ways in which the nutritional value of your diet can be improved by naming at least one example with regard to choice, production, preparation and preservation.

Eat and buy wisely

It is the end of the month. Your father has received his salary cheque and you have just heard that you have passed that difficult maths test. Your father offers to treat you to a hamburger and chips at MacDoogle’s drive-in restaurant. Let us see whether you are also able to pass your own health exam by making a better choice. You can still enjoy a hamburger and chips, but possibly with better results for both your health and your savings account.

Consider the following:

A Super Burger with chips costs about R29,99. For this amount you get one mince patty that is made of soya flour and bread, and which contains about one serving spoonful of fatty mince. You get one bread roll with no butter, two spoonfuls of gravy, and chips that have been deep-fried in oil. Other people’s chips were also fried in this oil two days previously. You will most likely suffer from indigestion and heartburn after having eaten the bread roll. You’ll probably try to clear this up with a tin of Cola cool drink costing R4,50.

For the same amount of money you could have bought a packet of lean mince at the supermarket or butchery, as well as a loaf of whole wheat bread and four potatoes, which would mean a much more wholesome meal for four people. After the meal you would have felt much healthier – especially if you had gone for a walk, instead of travelling to the drive-in restaurant by car.

The fast-foods option might sound good, but it is not the wisest route to follow. We should start thinking about the food we eat early in life: what its nutritional value is, how it has been prepared, and what preservatives have been used to give it a longer shelf life.


To compare two foodstuffs

[lo 1.1]

Draw a table with two columns and compare two foodstuffs that you eat often, but for which there are actually healthier alternatives. Consider the price, fattiness, preservatives, etc.

Foodstuff 1 Foodstuff 2


LO 1


The learner will be able to make informed decisions regarding personal, community and environmental health.

We know this when the learner:

1.1 explores and reports on ways to protect the quality of food and water in various contexts;

1.2 investigates a local environmental health problem using different data sources, and plans a strategy to address the problem;

1.3 recognises the symptoms and causes of locally occurring diseases and discusses prevention strategies;

1.4 explains the individual health and social effects of substance abuse.



Grade 5 learners are in a developmental phase in which they are optimally receptive to subject content that deals with values systems, religion and lifestyle. Therefore the Grade 5 educator has the perfect opportunity to guide learners on the path to responsible adulthood. This is where a moral conscience is established. For at least the next eight years, values and norms that are internalised at this stage will guide the learners’ decisions regarding behaviour, choice of friends, studies and participation in community activities.

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
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
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
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.
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
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
characteristics of micro business
for teaching engĺish at school how nano technology help us
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
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
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.
what is the actual application of fullerenes nowadays?
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.
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.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
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.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
what is biological synthesis of nanoparticles
Sanket Reply
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Source:  OpenStax, Life orientation grade 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10983/1.2
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