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Natuurwetenskappe

Graad 5

Lewe en lewenswyse

Module 13

Voëls

Aktiwiteit:

Om kennis te neem van hoe enkele voëlsoorte verskillend aangepas is

[lu 2.2]

Wat maak die voëls eiesoortig?

  • Dit is die enigste dier met vere as huidbedekking. Die vere hou die voël warm en droog. Dit help ook die voël om te vlieg.
  • Die voorste ledemate van voëls (hulle “arms”) het verander om vlerke te vorm.
  • Voëls het lugsakke in hul bene wat hulle lig maak sodat hulle kan vlieg.
  • Voëls se borsbeen vorm ‘n kiel waaraan hul sterk vliegspiere vasgeheg is.
  • Voëls het deursigtige vliese oor hul oë sodat hulle hul oë tydens vlieg kan oophou.
  • Hul oë is besonder goed ontwikkel. Dink maar aan arende en valke.
  • Voëls kan nie ruik nie en is dus vir voeding geheel en al van hul smaaksintuie afhanklik.

INTERESSANTE FEITE I.V.M. VOËLS

  • Die volstruis is die grootste voëlsoort en lê die grootste eier.Volstruise word geteël vir hul eiers, vel, vere en vleis.Die volstruis skop sy vyand en kan ook seer pik.
  • Die Bloukransvoël: Nasionale voël van Suid-Afrika.
  • Die Kolgans: Die ou Egiptenare het hierdie voël as heilig beskou.

DIE POTE VAN VOËLS

In pare: Bestudeer die verskillende soorte pote en sê by watter voël hiernaas die pote pas. Motiveer waarom julle so besluit het deur na hul voedingswyse en leefwyse te verwys.

A BC

Jy kan gerus by die huis kyk na die snawels van voëls en hoe hulle by hul voedingswyse aangepas is.

Opdrag: groepwerk

Nie alle voëls bou neste nie.

  1. Noem een soort voël wat nie ‘n nes bou nie.
  1. Maak ‘n eenvoudige skets van die voël. Skets ook waar die eiers gelê word.
  2. Die meeste voëls bou neste. Waarom?
  1. Kies een soort voël wat jy in jou omgewing waarneem.
  1. Identifiseer die soort voël.
  1. Maak ‘n skets van die nes en voël.
  2. Gewaar jy die mannetjie en wyfie? Verskil hulle in voorkoms? Hoe? Hoekom?
  1. Hoe is voëls oor die algemeen aangepas om kos te kan soek en die kos te kan bekom?

Assessering

 

LU 2

KONSTRUKSIE VAN WETENSKAPKENNIS Die leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

Dit is duidelik wanneer die leerder:

2.1   betekenisvolle inligting onthou;

2.2   inligting kategoriseer;

2.3       inligting interpreteer.

 

Memorandum

A - muisvoëls, pote slegs om aan takke te kan klou.

B - arend of valk (alle roofvoëls), sterk kloue om prooi te kan vang.

C - eend, soos alle voëls wat in water swem: swemvlak wat die oppervlak vergroot.

Opdrag:

Groepwerk: Nie alle voëls bou neste nie

1. Nonnetjie uil; rooivalkie (ou neste); belangrikste: kiewiet

  1. Om eiers in te lê aan die begin van die lente. Dit word selde gebruik om in te slaap.

In pare

  • Bokkies, muise, rotte, molle, paddas, voëls, ens.
  • Molslang – vreet muise, molle wat ‘n las in die landerye is.
  • Hulle vreet rietrotte wat die suikerriet vreet.
  • Die eiervreter.
  • Ja – die koraalslang doen dit veral.
  • Eie navorsing.
  • Oë, reuk (tonge).

Aktiwiteit 3.6Om meer kennis op te doen oor die padda as voorbeeld van amfibieëLU 1.1

LU 1.2

Aktiwiteit 3.7Om eie kennis van visse uit te breiLU 1.2

Questions & Answers

current economic plans (MDGS) needs
Ajijola Reply
I don't know what is happening
surajkumar
What is economic
Joeali Reply
What is the importance of study economics
Wilma
Economic is the study of how humans make decisions in face of sacristy
Wilma
economics is the study of how humans makes decision in the face of scarcity
Kpienta
economics is the study of human behaviour when faced with difficult situation example when goods and services are scarcity.
Sydney
what is Economic
Dauda Reply
what is 4ps of economic?
thomas Reply
production place Price product
Benedict
Criticism of elasticity
Siddikur Reply
what is unemployment
Gyamfi Reply
ohk thanks
Gyamfi
why is unemployment rapid in the country
Gyamfi
I need more explanation
Odo
what is unemployment
Munanag Reply
not working
Bethel
some one who is willing qualified to work but can't find job
jackie
Bethel...explain? please
Abubakar
some one who is willing to work but can't find job
Hawa
Yes true
Brian
which one please
Hawa
unemployment refers to the ability for someone who is capable and willing to work but could not find a job..
Mnoko
some one who not able to find a job
Dennis
please what is the secret of learning?
thomas
What is stock market?
JOHN Reply
explain the various types of cost curve
Ruth Reply
Short-run average fixed cost (SRAFC) Short-run average total cost (SRAC or SRATC) Short-run average variable cost (AVC or SRAVC) Short-run fixed cost (FC or SRFC) Short-run marginal cost (SRMC) Short-run total cost (SRTC)
Romy
what's economic development and growth
Popoola Reply
what do you understand by Ceteris Paribus?
Gabriel Reply
the external factor will remained constant, except the price
Hasib
everything being equal
Chenwi
explain the uses of microeconomics
Nikita Reply
uses of microeconomics
Nikita
Adam Smith's definition of economics
Sylvia Reply
what is economic deficit
Amjad
this is a situation whereby a nation's outcome or available resources are not enough to the people thereby causing scarcity
Ariel
prices of Quality demanded is equal to Quality supplied
NABUBOLO Reply
it's quantity demand and quantity supplied that's called equilibrium
Romy
no
NABUBOLO
they deal With prices
NABUBOLO
define the elasticity
NABUBOLO
explain different types of elasticity
NABUBOLO
oops 😬 you are right you talk about quality I tell about quantity
Romy
elasticity is the measurement of the percentage change of one economic variable in response to a change in another
Romy
Cross Elasticity of Demand (XED) Income Elasticity of Demand (YED) Price Elasticity of Supply (PES)
Romy
anything else?
Romy
I need to know everything about theory of consumer behavior
Grace
Romy, what is microeconomic?
thomas
What is Economic please
Dauda
Thomas, microeconomics is the study of how consumers, workers, and firms interact to generate outcomes in specific markets
Kieran
Dauda, economics is the study of people and choices. it is on one side the study of wealth and on the more important side, a part of the study if man
Kieran
How does one analyze a market where both demand and supply shift?
Gabriel Reply
That's equilibrium market
Ramon
but an equlibrum can appear twice on the same market... both in Movement along the Demand/supply curve of shift in the Curve
Gabriel
I Mean on the same curve..
Gabriel
how can consumer surplus be calculated
Franklyn
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Source:  OpenStax, Natuurwetenskappe graad 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10980/1.2
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