I think every single chemistry teacher has done the ammonium dichromate volcano at least once in their career. It's a show stopper at open evenings and the audience is always wowed by it. I came across this great video from the Royal Society of Chemistry showing a different way of doing this experiment which allows you to clean afterwards much easily. All is also done according to the guidance from CLEAPSS.
Which topic/s could you use this video with?
- chemical vs. physical change
- exothermic reactions
- oxidation states
Key words: ammonium dichromate (VI), disposal, safety
I wish you great lessons!
Karolina
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