Home Class 8 Science MCQs – Sindh Textbook Class 8 Science MCQs – Sindh Textbook 1. Human Organ System – MCQs 2. Heredity in Organisms – MCQs 3. Biotechnology – MCQs 4. Pollutants and Their Effects on Environment – MCQs 5. Chemical Reactions – MCQs 6. Acids, Alkalis, and Salts – MCQs 7. Force and Pressure – MCQs 8. Measurement of Physical Quantities – MCQs 9. Sources and Effects of Heat Energy – MCQs 10. Lenses – MCQs 11. Electricity in Action – MCQs 12. Exploring Space – MCQs