Xu, X. ; Wu, M. ; Wang, X. ; Yang, Yangyiwei ; Shi, X. ; Wang, G. (2016)
Experimenting with a visible Copper-Aluminum displacement reaction in Agar gel and observing Copper crystal growth patterns to engage student interest and inquiry.
In: Journal of chemical education, 93 (9)
doi: 10.1021/acs.jchemed.6b00207
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The reaction process of copper–aluminum displacement in agar gel was observed at the microscopic level with a stereomicroscope; pine-like branches of copper crystals growing from aluminum surface into gel at a constant rate were observed. Students were asked to make hypotheses on the pattern formation and design new research approaches to prove their hypotheses. Results of the experiments designed by students well proved the existence of microcells in reaction system, which caused continuous growth of copper branches. The whole experimental teaching process motivated students by stimulating their interest and enthusiasm.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Xu, X. ; Wu, M. ; Wang, X. ; Yang, Yangyiwei ; Shi, X. ; Wang, G. |
| Art des Eintrags: | Bibliographie |
| Titel: | Experimenting with a visible Copper-Aluminum displacement reaction in Agar gel and observing Copper crystal growth patterns to engage student interest and inquiry |
| Sprache: | Englisch |
| Publikationsjahr: | 24 Juni 2016 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of chemical education |
| Jahrgang/Volume einer Zeitschrift: | 93 |
| (Heft-)Nummer: | 9 |
| DOI: | 10.1021/acs.jchemed.6b00207 |
| Kurzbeschreibung (Abstract): | The reaction process of copper–aluminum displacement in agar gel was observed at the microscopic level with a stereomicroscope; pine-like branches of copper crystals growing from aluminum surface into gel at a constant rate were observed. Students were asked to make hypotheses on the pattern formation and design new research approaches to prove their hypotheses. Results of the experiments designed by students well proved the existence of microcells in reaction system, which caused continuous growth of copper branches. The whole experimental teaching process motivated students by stimulating their interest and enthusiasm. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Mechanik Funktionaler Materialien |
| Hinterlegungsdatum: | 05 Mai 2017 10:17 |
| Letzte Änderung: | 18 Dez 2023 12:49 |
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