| 1. | The symbol He stands for | Helium |
| 2. | The symbol Md stands for | Mendelevium |
| 3. | The symbol of gold is | Au |
| 4. | The symbol of silicon is | Si |
| 5. | The symbol of silver is | Ag |
| 6. | The symbol of sodium is | Na |
| 7. | The symbol of Sr stands for | Strontium |
| 8. | The symbol of titanium is | Ti |
| 9. | The symbol Rb stands for | Rubidium |
| 10. | The symbol Zn stands for | Zinc |
| 11. | The symbol Zr stands for | Zirconium |
| 12. | The three states of matter are | Solid,liquid and gas |
| 13. | The two colours seen at the extreme ends of the pH chart are | Red & Blue |
| 14. | The unit of loudness is | Phon |
| 15. | The unit of power is | Watt |
| 16. | Thermostat is an instrument used for regulating | Constant temperature |
| 17. | Toxicology is the study of | Poisons |
| 18. | Unlike most other fish, sharks have no: | Bones |
| 19. | Virology is the study of | Viruses |
| 20. | Why food articles are mostly packed in alluminium foil? | To avoid rancidity |
