Science Old Book Chapters - 7th - CBSE 1. Nutrition in Plants 2. Nutrition in Animals 3. Heat 4. Acids, Bases and Salts 5. Physical and Chemical Changes 6. Respiration in Organism 7. Transportation in Animals and Plants 8. Reproduction in Plants 9. Motion and Time 10. Electric Current and its Effects 11. Light 12. Forests : Our Lifeline 13. Structure of matter 14. Heat and its effects 15. Flow of Heat 15. Wastewater Management