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1.13 Mielies

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Natuurwetenskappe

Graad 4

Lewe en lewenswyse

Module 14

Mielies

Mielies

Mielies is ‘n belangrike deel van ‘n gebalanseerde dieet vir Suid-Afrikaners. Dit is een van ons land se belangrikste graansoorte en verskaf werk aan duisende boere en plaaswerkers. Dit is ook ‘n belangrike dierevoedsel en dien ook as grondstof vir die vervaardiging van papier, verf, tekstielware, medisyne en voedselprodukte. Dit is ook ‘n belangrike bron van energie.

Opdrag:

Plant ‘n paar mieliesade ongeveer 2 cm diep in grond wat jy met kompos voorberei het. Die sade moet ongeveer 30 cm van mekaar af wees. Onthou om dit elke dag nat te maak.

Luister mooi na die les wat jou onderwyser vir jou gee en voltooi dan die taakkaart oor mielies.

Wees ‘n kok: ontwerp jou eie sjokoladekoekies. Gebruik gesmelte sjokolade, ‘n bietjie klapper, groen en rooi kersies, neute en ontbytpap wat van mielies gemaak is, bv. Corn Flakes. Maak seker dat ‘n volwassene jou help om die sjokolade te smelt.

Memorandum

MIELIES

Mielies groei goed

  • sonnige weer
  • geen ryp
  • goeie reënval

Mielieboere se probleme

  • onkruid
  • haelstorms
  • droogte

Gebruike van mielies

  • mielierys
  • mieliemeel
  • lekkers
  • ontbytkosse
  • veevoer
  • stysel
  • papier

Groei van die mielieplant

  • lente: plant
  • somer: groei
  • herfs: word ryp
  • winter: oes

Questions & Answers

calculate molarity of NaOH solution when 25.0ml of NaOH titrated with 27.2ml of 0.2m H2SO4
Gasin Reply
what's Thermochemistry
rhoda Reply
the study of the heat energy which is associated with chemical reactions
Kaddija
How was CH4 and o2 was able to produce (Co2)and (H2o
Edafe Reply
explain please
Victory
First twenty elements with their valences
Martine Reply
what is chemistry
asue Reply
what is atom
asue
what is the best way to define periodic table for jamb
Damilola Reply
what is the change of matter from one state to another
Elijah Reply
what is isolation of organic compounds
IKyernum Reply
what is atomic radius
ThankGod Reply
Read Chapter 6, section 5
Dr
Read Chapter 6, section 5
Kareem
Atomic radius is the radius of the atom and is also called the orbital radius
Kareem
atomic radius is the distance between the nucleus of an atom and its valence shell
Amos
Read Chapter 6, section 5
paulino
Bohr's model of the theory atom
Ayom Reply
is there a question?
Dr
when a gas is compressed why it becomes hot?
ATOMIC
It has no oxygen then
Goldyei
read the chapter on thermochemistry...the sections on "PV" work and the First Law of Thermodynamics should help..
Dr
Which element react with water
Mukthar Reply
Mgo
Ibeh
an increase in the pressure of a gas results in the decrease of its
Valentina Reply
definition of the periodic table
Cosmos Reply
What is the lkenes
Da Reply
what were atoms composed of?
Moses Reply
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Source:  OpenStax, Natuurwetenskappe graad 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11097/1.1
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