Date: Mon, 31 Jan 2005 09:03:44 -0700
Reply-To: "Greene, Ben" <bgreene**At_Symbol_Here**SMTP3.WSTF.NASA.GOV>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Greene, Ben" <bgreene**At_Symbol_Here**SMTP3.WSTF.NASA.GOV>
Subject: Class demo - whoa!

I thought members of this list would be interested in the following article. The link is broken now. Ben Bloom Trail students experiment with teaching BLOOM TOWNSHIP, EDUCATION: Educators hope visit to Sandridge sparks interest in science. BY JOAN CARREON Times Correspondent This story ran on on Friday, January 28, 2005 12:12 AM CST BLOOM TOWNSHIP | With smoke and flames, exploding eggs and color-changing mixtures, fifth- and sixth-grade students at Sandridge Elementary School were wowed by science Thursday. Bloom Trail High School chemistry teacher Chris Clausing and six of his students spent part of the day at Sandridge, demonstrating a variety of chemistry and physics experiments in an effort to spark an interest in science. There were mixes of solutions like phenophthalein, sodium hydroxide and hydrochloric acid and silver nitrate, potassium hydroxide and dextrose. Each combination reacted differently and each resulted in an audible response from the Sandridge students. Bloom Trail junior Matt Bolin blended hydrogen peroxide, a starter solution, and potassium iodate and put it on top of a magnetic stirrer. The mixture went from yellow to blue and back to yellow again. Sandridge students were visibly impressed. Senior Jeff Borus' mix of potassium permanganate, glycerine and water generated smoke and purple and "sherbet"-colored flames. The elementary school students applauded. Junior Melissa Wolford made slime using polyvinyl alcohol and isopropyl (rubbing) alcohol. Students in Nancy Adams' and Candice Myers' fifth-grade classes were eager to touch it. When Wolford lit a match and cautiously dropped it into a large empty water jug coated with isopropyl alcohol, there was a loud whoosh and flames shot out the top of the jug. Eleven-year-old Brandon Baranowski said he liked this experiment the best. "That's what chemistry is," Clausing explained. "Talking about fire and about things that blow up." But Wolford, who attended Sandridge for kindergarten, first and second grade, offered some words of caution. "Do not do this at home," she told the youngsters. "This experiment does hurt. I've burned myself five or six times already and I've had two years of training." Clausing said his intent in bringing his high school students into elementary schools to demonstrate chemistry in action is 'to get the love of science instilled at a young age." Other Bloom Trail students who took part in the event at Sandridge were junior Danielle Knight, junior Teri Belt and freshman Jeff Paris.

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