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