R117.86

Resource Description

Natuurwetenskap Graad 7 Kwartaal 2 Aktiwiteitsboek

Slegs Aktiwiteite

Memorandum ingesluit

Materie en materiaal: hoe selfone gemaak word, omgewingsimpak van mynbou, probleme met plastiek, skeiding van mengsels, sortering en herwinning van materiale, sure, basisse, neutrale stowwe, suurbasis-indikators, die periodieke tabel van elemente, metale, nie-metale en half-metale, edelgasse, halfgeleiers

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