Issue #357

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  • Letters to the editors (page 2).
  • Kenneth A. Woolner (1934-2008) (page 3) - Ken died on April 8, 2008. He was a physics professor at University of Waterloo and a friend to Chem13 News. Ken was the author of the infamous biography of Claude Émile Jean-Baptiste Litre. Chem13 News plans to reprint this fun story in the April 2009 issue.
  • For new teachers: Quantitative labs in chemistry, 6.
    Constancy of the composition of a pure substance
    by Herb Deruyter (pages 6-7) - this student-ready activity is designed for demonstrate percentage composition.
  • JChemEduc review, December 2007 – February 2008 (page 8) - Lew highlights selected articles for the Journal of Chemical Education that may be of interest to high school chemistry teachers.
  • 20th Biennial Conference on Chemical Education (BCCE) (pages 9-12) - an overview is given of the 20th BCCE conference held in Indiana in summer of 2008.
  • Encouraging proper use of Wikipedia (PDF) by Scott Clark (pages 13-14) - Scott gives an outline of how students should be using the internet and Wikipedia with their research assignments. High school students will benefit from reading this.
  • Chemistry sniglets (PDF) by Erin Graham’s AP chemistry class (page 14) - New words are created in chemistry. For example, Ironic bonding: when you write that hydrogen bonding is a bond on a test but it is marked wrong but you think you are right. Want to see more. Also Chem13 News is always interested in more of these fun sniglets. Send them to Jean Hein.
  • A “publications crostic by Gerry Toogood (pages 16-17) - For those puzzle fans, another of Gerry’s crostics.
  • Answers to March 2008 Avogadro’s constant su-chem-du (page 17).
  • Answer to “A self-confident crostic” (page 18).
  • Logical chemical puzzle #12 (PDF) by Carlos Mauricio Castro-Acuña (page 19) - students love these logical chemical puzzle. Try it.
  • Cartoons are by Nick Kim (page 14) (PDF), Richard M. Furlough (page 17).