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DCHAS-L Discussion List Archive

From: McGrath Edward J <Edward.McGrath**At_Symbol_Here**REDCLAY.K12.DE.US>
Subject: Re: [DCHAS-L] [External] Re: [DCHAS-L] another "safe" demo
Date: Sat, 5 Oct 2019 23:00:08 +0000
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: BN6PR03MB31053A47B9249BF5481F9F1596990**At_Symbol_Here**BN6PR03MB3105.namprd03.prod.outlook.com
In-Reply-To


If you're right,  it's not only unsafe; it's extra messy, as in sooty. 

As a school administrator,  I want to know WHY.  I've never heard of a teacher contract that requires a teacher to entertain the students.   And don't try the whole, "well,  it engages the students " argument.   Student engagement means that the students are working on a meaningful task.  

Eddie McGrath 


Sent via the Samsung Galaxy S8, an AT&T 5G Evolution capable smartphone


-------- Original message --------
From: ILPI Support <info**At_Symbol_Here**ILPI.COM>
Date: 10/5/19 6:52 PM (GMT-05:00)
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: [External] Re: [DCHAS-L] another "safe" demo

My money is on calcium carbide because he said "starting to generate that flammable gas".  Pour water on the calcium carbide and it makes acetylene; the basis for old miner's lamps.

Rob Toreki

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On Oct 5, 2019, at 6:13 PM, Patricia Redden <predden**At_Symbol_Here**SAINTPETERS.EDU> wrote:

Here's a new one on me.  Science teacher uses "explosives," according to the title, or "flammable gas" according to his narrative, to carve a pumpkin.  I'm guessing methanol, based on the video?  No shields, lots of flame.

https://www.instagram.com/p/BplBmF4FbGl/?igshid=1336981534453&fbclid=IwAR2mtqhmgyRQ0D4M--ATdsri96b3suC68S2RtbJu2AhJc0LfJ3rVfpIDAD0

Pat Redden
St. Peter's University
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