Available PDFs

Physics & Chemistry

• 1. Force

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• 2. Friction

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• 3. Synthetic Fibres and Plastics

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• 4. Metals and Non-Metals

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• 5. Sound

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• 6. Coal and Petroleum

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• 7. Combustion, Fuels and Flame

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• 8. Electric Conductivity of Liquids

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• 9. Some Natural Phenomena

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• 10. Stars and solar system

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