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Teaching PowerPoint

The resource marked with means that it has been modified according to the changes in the reprinted with minor amendments.

Teaching PowerPoint

The resource marked with means that it has been modified according to the changes in the reprinted with minor amendments.
Unit 9

9.1 Common acids and alkalis

9.2 Acid-alkali indicators and pH scale

9.3 Neutralization

9.4 Corrosive nature of acids

9.5 Potential hazards related to the use of acids and alkalis

Unit end

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Unit 10

10.1 Senses and sense organs

10.2 Sight

10.3 Hearing

10.4 Smell and taste

10.5 Touch

10.6 Sense of balance

10.7 The brain and our senses

Unit end

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Unit 11

11.1 Motion

11.2 Force

11.3 Gravity

11.4 Friction and air resistance

11.5 Action and reaction

11.6 Space flight

Unit end

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