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Brausetablettenschaumfeuerlöscher!
Experimente mit festem und gasförmigen CO2
Am Montag den 09.05.11 besuchten der Diplom-Chemiker Karl-Heinz Krätzschmar, der Leiter des Projekts "Science on Tour“, Sebastian Hänsel sowie ein Student der Fachhochschule Lausitz unser Gymnasium. Sie führten mit den Schülern der Klasse 8d selbst erarbeitete Experimente erstmals zum Thema Kohlenstoffdioxid durch. Vorerst erhielten wir einen kurzen Vortrag über die Hintergrundinformationen von Kohlenstoffdioxid und dann zur Durchführung der Experimente. In Teamarbeit bearbeiteten wir mehrere interessante Experimente.
Wir haben mit Hilfe von einer Brausetablette und Wasser, Kohlenstoffdioxid hergestellt und in Spritzen aufgefangen. Danach führten wir den Nachweis von Kohlenstoffdioxid mithilfe von Methylrot und Bariumhydroxid durch. Zusätzlich experimentierten wir mit Kohlenstoffdioxid in Form von Trockeneis. Das Ergebnis davon waren interessante und spannende Reaktionen. Am Schluss des Projekts sollten wir uns überlegen, wie man einen Schaumfeuerlöscher mithilfe der uns vorliegenden Materialien bauen kann.
Das Projekt brachte uns interessante Erkenntnisse und eine Menge Spaß. Vielen Dank an alle Organisatoren.
Im Namen der Klasse 8d Stephanie Peter