From: Laura Witham (lwnjr@yahoo.com)
Date: Wed Aug 25 2004 - 20:07:39 EDT
Next message: Joe Lannan: "[Channel-talkchemistry] First post"
I have not tried this myself, although I have heard
good success with it: Glo Germ. It is a harmless
fluorescent colorless substance you can plant
somewhere in the room, and after the end of the class,
you can show them the importance of washing their
hands after every lab by shining a black light on
them. I believe Flinn sells this stuff, but I don't
know if there is anything else available in a
traditional stockroom that would work just as well.
Good luck.
Laura Rotondo
--- Rodger Baldwin <RBaldwin@cusd15.k12.il.us> wrote:
> I try to illustrate the safety concepts as I present
> them to the
> students, but too often, it seems like one unlikely
> safety rule after
> another. Does anyone do any demostrations of the
> safety rules?
> I use the "rocket exhaust" demo from the Tik Liem
> book to illustrate
> the "never look in or point a heated test tube"
> rule. I use a small
> squirt of water onto a paraffin fire to illustrate
> that there are
> different types of fires and that students should
> not try to extinguish
> one when they don't fully understand how to. I do
> the cow eye demo with
> an egg white and nitric acid. Are there any other
> demos worth showing
> students to make the safety litany seem more
> relevant?
>
> Thanks,
>
> Rodger
>
>
>
> Rodger Baldwin
> Chemistry and Laboratory Sciences
> Clinton Community High School
>
>
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