| Unit | Chapter |
|---|---|
| L- 1 | Crop Production and Management |
| L- 2 | Microorganisms |
| L- 3 | Synthetic Fibers and Plastics |
| L- 4 | Physical and Chemical Changes |
| L- 5 | Materials:Metals and Non-metals |
| L- 6 | Coal and Petrolium |
| L- 7 | Combustion and Flame |
| L- 8 | Conservation of Plants and Animals |
| L- 9 | Cell:Structure and Functions |
| L- 10 | Reproduction in Animals |
| L- 11 | Reaching the age of Adolescence |
| L- 12 | Force and Pressure |
| L- 13 | Friction |
| L- 16 | Sound |
| L- 14 | Chemical Effects of Electric Current |
| L- 15 | Some Natural Phenomea |
| L- 16 | Light |
| L- 17 | Stars and Solar System |
| L- 18 | Pollutionn of air and water |
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