The teacher explains the difference between pure substances and mixtures. The latter can be heterogeneous or homogeneous. Various examples are given and shown. Processes for separating mixtures are then mentioned. These are explained in more detail in the following videos.
00:00 Intro
00:09 Pure substances and mixtures
01:16 Separation procedures
01:53 Outro
Ostbelgien-Kanal ( https://ostbelgienkanal.be/ )
– Thomas Birnbaum
Sound library (freesound.org)
– „Click“ by LeBaston100
Picture library (pixabay.com)
– „architecture-iron-steel-building-414035“ by LalouBLue
– „foam-water-bath-soap-bubbles-7453542“ by jhenning
– „granite-geology-rock-stone-wall-277305“ by Atlantis_C
– „heart-clouds-sky-blue-sky-love-1213475“ by oo11o
– „hilly-countryside-highland-trees-2572197“ by StockSnap
– „matchstick-flame-smoke-burn-5985710“ by m63mueller
– „milk-glass-pitcher-fresh-2474993“ by Couleur
– „water-lemon-drink-refreshing-glass-1187656“ by 2023852
– „water-muddy-nature-river-mohan-5290827“ by MOHANN
Bibliography
– DÖRRENBÄCHER Alfred, 2002, « 1.2 Stoffgemische und Stofftrennungen », in Duden Schüler-hilfen – Chemie 8. bis 10. Klasse – Chemische Verfahren und Gesetze richtig, Dudenverlag, Mannheim, pp. 11-14.
– BRACAVAL Philippe, 1993. « Tous les aimants sont-ils magnétiques ? », in Les jeunes scienti-fiques en herbe – Grand livre en questions et réponses, éditions Chantecler, Aartselaar, pp. 67.
– FRÜHAUF Dieter, TEGEN Hans, 2006, « |2| Mischen und Trennen im Alltag und Technik », in Blickpunkt Chemie, Westermann Schrödel Diesterweg Schöningh Winklers GmbH, Braun-schweig, pp. 27-42.
– MCQUARRIE Carole, MCQUARRIE Donald, ROCK Peter A., 1992, « Atomes et molécules », in Chimie générale, Éditions De Boeck Université, Bruxelles, pp. 30-65.
– MATTHYS Nathalie, TODOROFF Sophie, SUYS Bernard, 2003, « Chapitre 3 – Changer d’échelle et modéliser la matière», in Sciences 3e : Biologie, chimie, physique, Éditions De Boeck, Bruxelles, pp.57-85.
– BERTRAND-RENAULD Simone, MOLS Jean, 2001, « Mélanges et corps purs », in Je construis mes apprentissages en sciences au premier degré, Éditions De Boeck, Bruxelles, pp. 278-279.
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