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CHEMISTRY

CHEMISTRY. Form 2 ambcol36@servihoo.com (Mauritius). Objectives. To recall the term CFC (Chlorofluorocarbon ) To use the periodic table to list the elements found in CFC To describe the importance of the ozone layer To search for information on CFC and ozone layer (using ICT)

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CHEMISTRY

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  1. CHEMISTRY Form 2 ambcol36@servihoo.com (Mauritius)

  2. Objectives • To recall the term CFC (Chlorofluorocarbon) • To use the periodic table to list the elements found in CFC • To describe the importance of the ozone layer • To search for information on CFC and ozone layer (using ICT) Time: 40 minutes Resources:NEPAD lab 16/5/07

  3. INTRODUCTION • Refer to your M.I.E textbook Pg 97 • Recap on acid rain. • Refer to your book and give me the meaning of CFC? • Use the periodic table from the NEPAD library to find out the elements and symbols of the elements found in CFC. • [Curriculum – Harcourt – Chemistry AS Pack – Pg 150] – Rotate anticlockwise

  4. CFC • Find out about CFC from the internet • www.mamma.com • Search box: Chlorofluorocarbon ozone layer picture atmosphere • Sharing about (a) Ozone layer (b) CFC

  5. DAMAGE DUE TO CFC (Research samples)

  6. Ozone layer (Research samples) • On October 3, 1999 the size of the Antarctic ozone hole is smaller than it was at the same time last year. Red colors denote high ozone levels; blue denotes low.

  7. Evaluation • Questions on CFC and its dangers • Research on CFC-free propellants and to bring samples for the next class

  8. Internet Shortcuts • http://science.nasa.gov/newhome/headlines/essd06oct99_1.htm • http://www.upei.ca/~physics/p261/projects/ozone1/ozone1.htm

  9. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

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