1. Force and Pressure

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2. Friction

3. Coal and Petrolium

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4. Synthetic Fibres and Plastics

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5. Sound

6. Materials: Metals and Non-metals

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7. Light

8. Chemical effects of Electric Current

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9. Some Natural Phenomena

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10. Combustion and Flame

11. Stars and the Solar System

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Pollution of Air and Water

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