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Subject: Re: [DCHAS-L] another "safe" demo
Date: Saturday, October 5, 2019 at 7:07:29 PM
Author: Ernest Lippert <ernielippert**At_Symbol_Here**TOAST.NET> 		Next by Date:
Subject: Re: [DCHAS-L] [EXT] Re: [DCHAS-L] Letter to the National PTA regarding the rainbow flame demo
Date: Mon, 7 Oct 2019 04:20:14 -0400
Author: Daniel Kuespert <0000057d3b6cd9b7-dmarc-request**At_Symbol_Here**LISTS.PRINCETON.EDU>

From: Ken Kretchman <kwkretch**At_Symbol_Here**ncsu.edu>
Subject: Re: [DCHAS-L] [External] Re: [DCHAS-L] another "safe" demo
Date: Sun, 6 Oct 2019 10:26:05 -0400
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
Message-ID: 56F2F1FC-585E-4295-8C5B-5EDE817724E4**At_Symbol_Here**ncsu.edu
In-Reply-To


So what did they learn... on the positive rather than negative side?


Actually this could have been the intro to a risk vs benefit discussion , an important concept for students that they pass through their many future transactions ..   otherwise ?

Sent from my iPhone

On Oct 5, 2019, at 7:00 PM, McGrath Edward J <Edward.McGrath**At_Symbol_Here**redclay.k12.de.us> wrote:

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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