Science Teachers
Mar 23, 2019 10:53:36 #
Mar 23, 2019 11:12:52 #
Mar 23, 2019 11:17:36 #
Hmmm.
Do they go tick- tick- tick,
or thud- thud- thud- ...
Mar 24, 2019 07:28:37 #
Mar 24, 2019 08:34:13 #
Bigmike1
Loc: I am from Gaffney, S.C. but live in Utah.
I laughed out loud when I saw this. It brings back memories of my teaching days of forty years ago now.
Mar 24, 2019 08:48:15 #
Mar 24, 2019 09:54:35 #
That looks fairly harmless, but I can think of some other experiments that might cause concern. I wonder what kind of noise they make. 
Mar 25, 2019 10:05:53 #
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