All articles by Sandrine Bouchelkia – Page 2
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Practical videoIdentifying ions – practical videos | 14–16 students
Video resource showing how to identify ions in various solutions. Flame tests, sodium hydroxide test (microscale) and tests for negative ions: carbonate, sulfate and halide ions
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Practical videoAdnabod ïonau – fideos o dasgau ymarferol | myfyrwyr 14–16
Adnodd fideo sy’n dangos sut mae adnabod ïonau mewn gwahanol hydoddiannau. Profion fflam, prawf sodiwm hydrocsid (ar raddfa micro) a phrofion am ïonau negatif: ïonau carbonad, ïonau sylffad ac ïonau halid
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Class experimentChromatography of sweets | 11–14 years
Try this class practical to carry out chromatography using dye from different coloured M&M’s®. Includes kit list and safety instructions.
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DemonstrationThe ‘breathalyser’ reaction | 16–18 years
Try this demonstration to recreate an early ‘breathalyser’ test, passing ethanol vapour through potassium dichromate. Includes kit list and safety instructions
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