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3.5 Om die drie basiese vorms van materie in terme van die

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Natuurwetenskappe

Materie, meting en reaksies

Materie en meting

Opvoeder afdeling

Memorandum

Opdrag 3:

Basiese vorms van materie

VASTE STOWWE VLOEISTOWWE GASSE
Yster Water Koolstofioksied
Hout Tee Suurstof
Plastiek Wyn Stikstof
Staal Melk Koolstofmonoksied
Koper Koeldrank Natrium
Papier Brandewyn Ysteroksied
Steenkool Petrol Ammoniak
Goud Olie Metaan
Katoen Handy andy Helium
Wol Heuning
Kaas Joghurt

Leerder afdeling

Inhoud

Aktiwiteit: om die drie basiese vorms van materie in terme van die deeltjieteorie te kan verduidelik [lu 2.2]

  • VASTE STOWWE
  • VLOEISTOWWE
  • GASSE

Die partikels in vaste stowwe bly op dieselfde plek en beweeg net effens. Hulle vibreer in ‘n vaste posisie. Dit is waarom vaste stowwe ‘n vaste vorm en volume het. Die partikels vorm ‘n reëlmatige patroon.

In vloeistowwe kan die partikels beweeg, maar nie ver van mekaar af nie. Hulle vorm nie ‘n vaste patroon nie en kan dus die vorm aanneem van die houer waarin hulle is. Omdat die partikels nie ver van mekaar af beweeg nie, verander die volume nie maklik nie.

Die partikels in ‘n gas kan min of meer na enige plek beweeg. Die partikels is ook baie verder van mekaar as in ‘n vaste stof of vloeistof.

OPDRAG 3

Kyk of jy die volgende drie kolomme kan voltooi deur voorbeelde van die drie vorms van materie te noem.

Vaste stowwe Vloeistowwe Gasse
Yster Water Koolstofdioksied
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________
_______________________ _______________________ _______________________

Assessering

Leeruitkomste 2: Die leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

Assesseringstandaard 2.2: Dit is duidelik wanneer die leerder inligting kan kategoriseer: vergelyk kenmerke van verskillende kategorieë voorwerpe, organismes en gebeurtenisse.

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Source:  OpenStax, Natuurwetenskappe graad 7. OpenStax CNX. Sep 16, 2009 Download for free at http://cnx.org/content/col11078/1.1
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