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1. Crop Production and Management
2. Microorganisms Friend and Foe
3. Synthetic Fibres and Plastics
4. Materials Metals and Non-Metals
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7. Conservation of Plants and Animals
8. Cell Structure and Functions
9. Reproduction in Animals
10. Reaching the Age of Adolescence
11. Force and Pressure
12. Friction
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14. Chemical Effects of Electric Current
15. Some Natural Phenomena
16. Light
17. Stars and the Solar System
18. Pollution of Air and Water
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