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Unit-I Living World
1. Reproduction in Plants 5
2. Animals : Their Amazing features 17
3. Inhaling and Exhaling 28
4. Human Skeletal System 34
5. Nervous System and Sense Organs 43
6. Nutrition and Health 52
7. Safety and Application of First-Aid 64
Unit-II Material
8. States of Matter 74
9. Formation of Rocks and Minerals 82
Unit-III Nature Around Us
10. Air and Water 92
11. Soil Formation, Erosion and Conservation 100
Unit-IV Man and Machines
12. Forms and Sources of Energy 108
Model Test Paper-1 115
Model Test Paper-2 116
Half Yearly Exam 117
Model Test Paper-3 118
