Across
- 2. Which substance gives heat and light after combustion
- 5. Green-house gas
- 7. Nearest planet to Sun
- 8. Natural resource
- 10. Soft Metal
- 11. Voicebox
- 12. Basic structural and functional unit of life
- 15. Shaking of Earth
Down
- 1. Largest Planet
- 3. Brightest Planet
- 4. Poor conductor
- 5. Natural Fibre
- 6. Liquid conducts electricity
- 9. An example of fossil fuel
- 13. Benjamin Franklin
- 14. Synthetic Fibre