CHEMISTRY - The World of Teaching

CHEMISTRY - The World of Teaching

CHEMISTRY Form 2 [email protected] (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) Time: 40 minutes Resources:NEPAD lab 16/5/07

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 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 DAMAGE DUE TO CFC (Research samples) Ozone layer 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. (Research samples)

Evaluation Questions on CFC and its dangers Research on CFC-free propellants and to bring samples for the next class Internet Shortcuts http://science.nasa.gov/newhome/he

adlines/essd06oct99_1.htm http://www.upei.ca/~physics/p261/ projects/ozone1/ozone1.htm 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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