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This is a question Awesome teachers

Teachers have been getting a right kicking recently and it's not fair. So, let's hear it for the teachers who've inspired you, made you laugh, or helped you to make massive explosions in the chemistry lab. (Thanks to Godwin's Lawyer for the suggestion)

(, Thu 17 Mar 2011, 11:18)
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Mr. Brackenridge
Once Mr.B. and the labtechs decided that the large lumps of sodium (I can't remember exactly what, c'mon it was 1997) stored in oil were "old" & had to be disposed of we got to go down to the school pool (yeah, I had a privileged edumacation) & chuck the lot in.
Much fizzing, popping & hilarity ensued as Mr.B. *carefully* paper-toweled each chunk then handed it to us to chuck into the pool so that we could understand the valence differences between a volatile metal and water.
I'm pretty sure the grounds-keeper was fairly pissed off at us doing our best to change the pool's pH but...
Na + H2O = Fun!
FFiiiiiiiiiizz. BANG!
EDIT: Not a pair of safety glasses to be seen.
(, Fri 18 Mar 2011, 7:58, 1 reply)
I bet the next swimming lesson was fun with the pool containing sodium hydroxide.

(, Sat 19 Mar 2011, 1:15, closed)

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