Science - Teachers Sri Lanka

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Criteria for assessment and evaluation ² Explain varying patterns of properties of elements when moving forwards along periods and down along groups. ² Appreciate that the elements are classified in the periodic table for easy study of properties of elements. ² Discovers connection between the position of element in the periodic table and the proper ties of the element. ² Understands natural patterns. ² Use graphs to present data meaningfully when it is suitable. 51
Annex 2.2.1 Periodic Table Copyright © 2007 National Institute of Education - <strong>Sri</strong> <strong>Lanka</strong>. All rights reserved. . 52
Page 2 and 3: SCIENCE Teacher Instruction Manual
Page 4 and 5: Message of the Director General The
Page 6 and 7: Time has been allocated for activit
Page 8 and 9: Direction: Prof. J W Wickremasinghe
Page 10 and 11: Competency 1.0 ( Investigates Scien
Page 12 and 13: Criteria for assessment and evaluat
Page 14 and 15: Copyright © 2007 National Institut
Page 16 and 17: Chadwick showed that when α Partic
Page 18 and 19: Competency 1.0 ( Investigates Scien
Page 20 and 21: ² Relative atomic mass=mass of an
Page 22 and 23: "Looking at an atom with an explora
Page 24 and 25: Atomic Number The atomic number of
Page 26 and 27: 25 17 17 19 19 19 20 20 20 20 20 20
Page 32 and 33: Annex 1.3.4 Chemical bonds Ionic bo
Page 34 and 35: Ionic compounds have the following
Page 36 and 37: Pay your attention to the nature of
Page 38 and 39: Every atom of carbon in graphite ex
Page 44 and 45: Annex 1.4.1 Data Table Element Mass
Page 46 and 47: Competency 2.0 ( Investigates Perio
Page 50 and 51: Competency 2.0 ( Investigates Perio
Page 56 and 57: Competency 3.0 ( Use chemical react
Page 58 and 59: ² When an element displace another
Page 60 and 61: Competency 3.0 :Use chemical reacti
Page 62 and 63: • Removal of electrons from an at
Page 64 and 65: Annex 3.2.3 Copyright © 2007 Natio
Page 70 and 71: Competency 3.0 ( Use chemical chang
Page 72 and 73: Annex 3.4.1 Criteria for assessment
Page 74 and 75: Ores in which the metal is present
Page 76 and 77: Extraction of Sodium Sodium is extr
Page 78 and 79: Extraction of Gold Metals Gold, Pla
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Page 82 and 83: Step 3.5.4 : • Set up earlier gro
Page 84 and 85: Work station III - Physical nature
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Page 90 and 91: Competency 3.0 : Use chemical chang
Page 92 and 93: • In the wine spirit flame, lumin
Page 94 and 95: • Discuss in the group the equipm
Page 98 and 99: Instruction for setting work statio
Page 100 and 101: Water fire extinguisher is used in
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Copyright © 2007 National Institut
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Annex 3.9.3 Instructions to set up
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Competency 3.0 : Use chemicals reac
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• Loss of heat could be minimized
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Competency 3.0 :Use chemical change
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• When igneous and sedimentary ro
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In addition to granite,basalt,rhyol
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Identify the charactors of followin
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Copyright © 2007 National Institut
Page 120 and 121:
Weathering of rocks by living being
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Tools for Extended Teaching - Learn
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Science - Teachers Sri Lanka

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