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Natural science

Grade 4

Life and way of living

Module 16

Describe a balanced diet

Describe a balanced diet

See if you can remember what you ate for supper last night! And for breakfast before school?

Foods are divided into four food groups. We need to eat something from each group daily to follow a healthy diet.

All living creatures need food for energy to move around, to grow and to repair cells that become damaged. All living creatures also have digestive systems to extract the nutrients that the body needs from the food that is eaten.

Food groups:

Proteins help the body to produce new cells and to grow up healthy and strong.

Sources of protein are: meat, fish, cheese, eggs, milk, soy beans, nuts.

Vitamins keep the body healthy and make bones and teeth strong.

Sources of vitamins are: fruit and vegetables, liver, milk, oily fish.

Fats supply energy. Energy is stored in fats in the body until it is needed.

Sources of fats are: butter, milk, cheese, nuts, cream, sardines, margarine, oil.

Sugar and starch (carbohydrates) also supply energy to the body.

Sources of starch and sugar are: fruit, biscuits, sweets, bread, ordinary sugar, potatoes, rice.

Minerals: Calcium builds strong bones, teeth and muscles. Iron helps red corpuscles to transport oxygen from the lungs to the rest of the body.

Sources of minerals are: milk, cheese, fish, vegetables, fruit, liver, white bread.

  • Draw the sources of food groups on the vertices of the cube. Then cut and fold it as indicated and hang it in the class.

Work out a balanced menu for one day, for three meals.

Find out what is the staple food in our country, and in other countries.


Use the cube pattern that is supplied. Let the learners draw on it and hang the completed cubes in the classroom.

Staple foods:

  • South Africa: bread (What about maize? – most black people eat this regularly)
  • Italy: spaghetti
  • Ireland: potatoes
  • China: rice

Questions & Answers

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.
yes that's correct
I think
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
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
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
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 did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Natural sciences grade 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11096/1.1
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