Wednesday

More exams today but I did have the pleasure of teaching my 5th form chemists. We went over the school exam paper, did some flame tests and I mentioned that the electrolysis research prep is now due in on Saturday. I wanted to show you a video of potassium reacting with water but we ran out of time, here it is anyway:

And here’s the slightly more dangerous version of the same experiment from Brainiac:


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