Presentation on theme: "1 RSC/IOP TRAINING FOR CHEM/PHYS TEACHERS SUPPORTED BY PACN AJ BUKINDA, UGANDA 17-21 August 09."— Presentation transcript:
1 RSC/IOP TRAINING FOR CHEM/PHYS TEACHERS SUPPORTED BY PACN AJ BUKINDA, UGANDA 17-21 August 09
2 Training team Byamugisha Alex, Uganda coordinator AJ Bukinda Jean M Johnson, UK and chemistry coordinator Pat Johnson, UK chemistry Francis Gatete, Rwanda IOP, physics coordinator Wadido Moses, Buddo SS, physics Cartland Richard, AJ Bukinda, physics Mpamizo Gonzaga, AJ Bukinda, physics Tukesiga Athanasius, AJ Bukinda, physics Assistants: Joseph, physics (Rwanda IOP); Hashaka Alex, Moses, Diing and Josephat, chemistry (AJ Bukinda)
3preparation Old boys now at university helped to mount posters and prepare gifts 5000 litres of water had to be added by jerry-can!!
4 participants 29 schools were represented; in most cases a chemist and physicist came from each school.. They included high achieving schools like Immaculate Heart, Kigezi High, Maryhill, and Buddo SS, but also schools form villages like Kamwezi and Kihihi. Districts represented included Kabale, Kisoro, Rukungiri, Kanungu, Ntungamo, Mbarara, Wakiso and Arua. Also, Ketema, a chemist, came from Ethiopia. Our multinational chemistry team
5 Colourful chemistry Food dyes were easily separated by chromatography; invisible ink and a chemical volcano gave a fun introduction to the course!
6 The Periodic Table Group I was illustrated by Ketema, with sodium reacting with water; the other Group I reactions were then viewed using the RSC DVD RSC DVD Great excitement as chlorine made in a Petri dish reacted with both aqueous bromide and iodide ions, showing it was more reactive! Jean demonstrated reaction of these ions with bromine, thereby showing how to illustrate simple and safely Group VII relative reactivities. The same Petri dish technique was used to show behaviour of nasty gases like nitrogen dioxide.
7 First attempt at a poster: teachers could not understand what we wanted! Other skills developed: Thermochemistry using plastic cups Simple redox using test tube reactions and DVD for reduction of CuO Introduction to plastic sheet expts to illustrate relative reactivities of metals Use of plastic sheets to carry out cation analysis was also a completely new experience!
8 Organic chemistry We could not find any shop that sold a liquid alkene, but were able to demonstrate polymerisation and addition easily with simple models
9 We carried out alcohol reactions with acidified dichromate and with a carboxylic acid, simply by immersing a test tube in hot water! First viewing of colours and observation of smells caused excitement! Teachers enjoyed the poster task on alcohol! Every teacher took away a box of Molymod models for use in his/her school
10 Reaction rates Just 50 drops of reagent was used in each cell to investigate the thiosulphate/ HCl reaction; good graphs were obtained.
11 Moles ….. are not really so difficult! Pat explained how to find the formula of CuO, using data from the DVD experiment Jean used varying mole ratios of aqueous lead ions and iodide ions to show the maximum ppt formed when there was twice as much iodide, hence the formula is PbI 2
12Ammonia Alex gave a superb demonstration of the Fountain Experiment
13 Posters …. began to make sense! Water…. lone pairs make it polar, so it’s attracted to a charged rod
14 Electrolysis …. next time, we need a Daniell cell! Electrolysis of salt ….. and books used as resources for posters! We also copper plated coins, linking to the malachite ore from Kilembe mines
15 Alcohol distilled from bananas made a good ending!
16 Neat equipment for electricity The physics team, back row, L to R Francis, Moses, Athanasius, Gonzaga
17 Each school received TWO multimeters, previously heard of but not seen!
26 ‘Practical subjects like physics and chemistry create a strong and firm foundation for the transformation of our country …….. I thank the RSC and IOP from London, England …… that funded this training for a week’ Closing remarks by Nyakairu Cox Apuuli, Resident District Commissioner, Kabale District