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Natuurwetenskappe

Graad 4

Lewe en lewenswyse

Module 1

Die sintuie

Alle lewende organismes bestaan uit selletjies. Jou liggaam is net soos ‘n masjien met baie onderdele wat elkeen sy eie taak het om te verrig. Die heel kleinste lewende deeltjies in ons liggaam word selle genoem. Daar is miljoene van hulle wat dag en nag werk om ons aan die lewe te hou.

Die selle doen nie almal presies dieselfde werk nie en daarom lyk hulle verskillend. Hulle vorm bene, spiere, organe, are, senuwees en natuurlik jou vel wat alles bymekaar hou!

Kom ons bekyk sommige dele van die liggaam ‘n bietjie van nader.

DIE SINTUIE

Ons noem die vyf sintuie sig, gehoor, reuk, smaak en tas. Die mens se sig is beter ontwikkel as sommige diere s’n, terwyl sommige diere, soos die kat en die hond, se gehoorsintuig weer beter ontwikkel is as die mens s’n. Hoekom dink jy is dit so?

Aktiwiteit:

Om oor die sintuie te gesels

[lu 2.1]

Opdrag 1

Soek prentjies in ou tydskrifte van mense en diere se sintuie, vergelyk dit en plak dit op 'n vel papier.

Opdrag 2

Skryf die bypassende sintuig onder elke prentjie:

Assessering

LU 1

WETENSKAPLIKE ONDERSOEK Die leerder is in staat om met selfvertroue op  weetgierigheid oor natuurlike verskynsels te reageer, en om binne die konteks van wetenskap, tegnologie en die omgewing verbande te ondersoek en probleme op te los.

Dit is duidelik wanneer die leerder:

1.1   ondersoek beplan;

1.2   ondersoek uitvoer en data versamel;

1.3       data evalueer en bevindings kommunikeer.

 

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.

 

LU 3

WETENSKAP, DIE SAMELEWING EN DIE OMGEWING Leerders is in staat om begrip van die onderlinge verband tussen wetenskap en tegnologie, die samelewing en die omgewing te toon.

Dit is duidelik wanneer die leerder:

3.1   wetenskap en tegnologie in die konteks van geskiedenis en inheemse kennis verstaan;

3.2   die impak van wetenskap en tegnologie verstaan;

3.3       vooroordeel in wetenskap en tegnologie herken.

Memorandum

DIE SINTUIE

Hoekom dink jy is dit so? Aanpassing by leefwyse, bv. Voeding en gevare.

Opdrag 2:

Sig: seuntjie wat boek lees

Gehoor: musieknote

Reuk: blom

Smaak: vis en skyfies

Tas: bad (vel voel water)

Questions & Answers

what is phylogeny
Odigie Reply
evolutionary history and relationship of an organism or group of organisms
AI-Robot
ok
Deng
what is biology
Hajah Reply
the study of living organisms and their interactions with one another and their environments
AI-Robot
what is biology
Victoria Reply
HOW CAN MAN ORGAN FUNCTION
Alfred Reply
the diagram of the digestive system
Assiatu Reply
allimentary cannel
Ogenrwot
How does twins formed
William Reply
They formed in two ways first when one sperm and one egg are splited by mitosis or two sperm and two eggs join together
Oluwatobi
what is genetics
Josephine Reply
Genetics is the study of heredity
Misack
how does twins formed?
Misack
What is manual
Hassan Reply
discuss biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles
Joseph Reply
what is biology
Yousuf Reply
the study of living organisms and their interactions with one another and their environment.
Wine
discuss the biological phenomenon and provide pieces of evidence to show that it was responsible for the formation of eukaryotic organelles in an essay form
Joseph Reply
what is the blood cells
Shaker Reply
list any five characteristics of the blood cells
Shaker
lack electricity and its more savely than electronic microscope because its naturally by using of light
Abdullahi Reply
advantage of electronic microscope is easily and clearly while disadvantage is dangerous because its electronic. advantage of light microscope is savely and naturally by sun while disadvantage is not easily,means its not sharp and not clear
Abdullahi
cell theory state that every organisms composed of one or more cell,cell is the basic unit of life
Abdullahi
is like gone fail us
DENG
cells is the basic structure and functions of all living things
Ramadan
What is classification
ISCONT Reply
is organisms that are similar into groups called tara
Yamosa
in what situation (s) would be the use of a scanning electron microscope be ideal and why?
Kenna Reply
A scanning electron microscope (SEM) is ideal for situations requiring high-resolution imaging of surfaces. It is commonly used in materials science, biology, and geology to examine the topography and composition of samples at a nanoscale level. SEM is particularly useful for studying fine details,
Hilary
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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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