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Summary Graad 9 Sosiale Wetenskappe (SW) (Geografie en Geskiedenis) Kwartaal 3 (Via Afrika) Opsommings $9.84
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Summary Graad 9 Sosiale Wetenskappe (SW) (Geografie en Geskiedenis) Kwartaal 3 (Via Afrika) Opsommings

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Hierdie produk bevat al die werk vir Sosiale Wetenskappe Graad 9, kwartaal 3 en is gebaseer op die “Via Afrika” Handboek in Afrikaans. Geografie:  Oppervlakkragte wat die aarde vorm: Eenheid 1:  Verwering. Eenheid 2:  Erosie en afsetting. Eenheid 3:  Die impak van mense op gronderos...

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  • October 8, 2024
  • 16
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,
, Die invloed van menslike
bedrywighede op verwering Die konsep van verwering
• Verwering = die prosesse wat rotse, grond en minerale
• Die brand van fossielbrandstowwe.
in kleiner stukke afbreek deur kontak met die
• Dinamiet skietwerk.
atmosfeer, biota en water.
• Mynbedrywighede.
• Verantwoordelik vir die vorming van grond en unieke
• Steengroefwerk.
gebiede op Aarde.



Biologiese verwering E1:

Fisiese verwering
Biologiese verwering = die fisiese en chemiese Verwering
aksies van lewende dinge. • Fisiese verwering = die afbreek van rotse in
• Fisiese aksies sluit in rots wat deur kleiner komponente sonder om die chemiese
plantwortelgroei of dieregate op breek. samestelling te verander.
• Chemiese aksies behels die uitskeiding van • Korreldisintegrasie - rotse breek in klein
sure, wat rotse en minerale kan verweer. korreltjies op om sand of klein stukkies gruis te
• Ontbinding van organiese materie stel vorm.
korrosiemiddels in die omgewing vry. • Afskilfering - rotse skil in lakens af.
• Blokskeiding - rotse breek op in groot
Chemiese verwering fragmente wat met rotslasse verband hou.
• Chemiese verwering = die afbreek van rotse in partikels met
verskillende minerale samestellings as die oorspronklike rots.
• Oplossingsverwering - minerale of oplosbare chemiese stowwe
in die rots regstreeks in water oplos.
• Hidrolise - minerale in die rots reageer met waterstof in
reënwater.
• Oksidasie - lei tot rooi of geel oksiede of hidroksiede wat
geproduseer word wanneer rotsminerale met opgeloste
suurstof reageer.
• Hidrering - minerale in rotse absorbeer water, uitsit en breek.
• Karbonaatvorming – 'n flou oplossing van koolsuur word
gevorm wanneer koolstofdioksied in water oplos.


GR9 SW-GEO O5-E1 Breinkaart Via Afrika Kopiereg © www.summariessa.co.za (DO NOT COPY)

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